Educator

Proportions

• Ratios that are equal form a proportion.
• The Cross Products Property is true because of the Multiplication Property of Equality.
• There are two ways to solve a proportion. You may be able to create an equivalent proportion by finding equivalent ratios by multiplying or dividing the numerator and denominator by the same number. The second way, the preferred method, is to use cross products and then solve for the missing number by using division.