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This page provides a list of educational videos related to Solve Proportional. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Solve Proportional.
Solving Similar Triangles and Proportions
By MrCaryMath
YouTube presents Solving Similar Triangles and Proportions, an educational video resource on math.
Solving proportion word problems
By Duane Habecker
This is a video about solving proportion word problems.
Solving proportions
By Khan Academy
Here's a great video where we explain the reasoning behind solving proportions. We'll put some algebra to work to get our answers, too.
Using Cross Multiplication to Solve Proportions
By Davitily
The instructor uses an electronic chalkboard to demonstrate how to use cross multiplication to solve for a missing variable in a proportion. One example is modeled using a step by step approach.
How to use Ratios and Proportions to Solve Real World Problems
By mrtedmartin
Instructor uses a Power Point presentation to demonstrate how to use ratios and proportions to solve problems real world problems. Unit rates are discussed and definitions are given. Solving unit rate problems are modeled and a calculator is used for computation.
Solving proportions
By Khan Academy
A recipe for oatmeal cookies calls for 2 cups of flour for every 3 cups of oatmeal. Mow much flour is needed for a big batch of cookies that uses 9 cups of oatmeal?
Writing proportions
By Khan Academy
Some examples of writing two ratios and setting them equal to each other to solve proportion word problems
Mountain height word problem
By Khan Academy
Using some basic algebra to solve what looks like a hairy word problem that involves proportions.
Comparing population proportions 1 | Probability and Statistics | Khan Academy
By Khan Academy
For qualitative variables, the population proportion is a parameter of interest. A point estimate of the population proportion is given by the sample proportion. With knowledge of the sampling distribution of the sample proportion, an interval estimate of a population proportion is obtained in much the same fashion as for a population mean.
Speed translation | Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy
By Khan Academy
This video takes us through some more advanced unit conversion problems. Here, we can see how to make multiple conversions in the same problem concerning speed. Take particular note of how the units change in each step. More importantly, note how, step by step, our units slowly change into the units we want for our final answer. If you are having trouble understanding why this happens, go to the key concept described at 2:20 in the video. Note that this only occurs when multiplying two quantities, not when adding them!
Finding average speed or rate | Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy
By Khan Academy
Using the formula for finding distance we can determine Usian Bolt's average speed, or rate, when he broke the world record in 2009 in the 100m. Watch.
Applying rational equations 1 | Polynomial and rational functions | Algebra II | Khan Academy
By Khan Academy
Watch this high-quality video from Khan Academy to learn how to apply rational expressions with some practice problems.