Solving Proportions Examples

Example 1

Solve the following proportion for x using multiplication:

4/5 = x/15


Example 2

Solve the following proportion for x using equivalent fractions:

4/5 = x/15

Example 3

Solve the following proportion for x using multiplication:

2/3 = x/4.5


Example 4

Solve the following proportion for x using equivalent fractions:

2/3 = x/4.5

Example 5

An Alaskan wildlife preserve Ranger wants to figure out how many moose live in the preserve. To do this, she randomly catches and tags 50 moose and releases them. A few months later, she catches 75 moose and sees that 20 of them are tagged. Approximately how many moose live on the preserve?