Finding the Third Proportional to 5,581.75 and 8,642.75
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Solution
The third proportional to 5,581.75 and 8,642.75 is: 13,382.39
Step by Step Solution
- Step 1: Write the proportion equation
5,581.75 : 8,642.75 = 8,642.75 : x - Step 2: Convert to fraction form
5,581.75/8,642.75 = 8,642.75/x - Step 3: Cross multiply
5,581.75x = 8,642.75 × 8,642.75 - Step 4: Simplify right side
5,581.75x = 74,697,127.56 - Step 5: Solve for x
x = 74,697,127.56/5,581.75 - Step 6: Final answer
x = 13,382.39
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.