Finding the Third Proportional to 7,922.81 and 16,815.09
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Solution
The third proportional to 7,922.81 and 16,815.09 is: 35,687.75
Step by Step Solution
- Step 1: Write the proportion equation
7,922.81 : 16,815.09 = 16,815.09 : x - Step 2: Convert to fraction form
7,922.81/16,815.09 = 16,815.09/x - Step 3: Cross multiply
7,922.81x = 16,815.09 × 16,815.09 - Step 4: Simplify right side
7,922.81x = 282,747,377.82 - Step 5: Solve for x
x = 282,747,377.82/7,922.81 - Step 6: Final answer
x = 35,687.75
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Why These Related Problems?
These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.