Finding the Third Proportional to 7,129.75 and 14,713.75
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Solution
The third proportional to 7,129.75 and 14,713.75 is: 30,364.94
Step by Step Solution
- Step 1: Write the proportion equation
7,129.75 : 14,713.75 = 14,713.75 : x - Step 2: Convert to fraction form
7,129.75/14,713.75 = 14,713.75/x - Step 3: Cross multiply
7,129.75x = 14,713.75 × 14,713.75 - Step 4: Simplify right side
7,129.75x = 216,494,439.06 - Step 5: Solve for x
x = 216,494,439.06/7,129.75 - Step 6: Final answer
x = 30,364.94
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Why These Related Problems?
These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.