Finding a Whole Using the Percent Proportion

The video tutorial explains how to use the percent proportion to find unknown values. It introduces the percent proportion formula, sets up a problem where 12 is 15% of an unknown number, and demonstrates solving it using cross multiplication. The solution reveals that 12 is 15% of 80. The lesson concludes by reinforcing the use of percent proportion to find a whole.

What does the 'is' represent in the percent proportion formula?

• The whole

• The variable

• The part

• The percent

In the problem '12 is 15% of what number?', what does the number 12 represent?

• The whole

• The variable

• The part

• The percent

What variable is used to represent the unknown whole in the percent proportion problem?

• x

• w

• y

• z

What is the result of multiplying 12 by 100 in the percent proportion problem?

• 1,200

• 1,500

• 1,800

• 1,000

What is the final value of x in the problem '12 is 15% of what number?'

• 80

• 85

• 90

• 75