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Finding the Third Proportional to 8,691.75 and 13,614.75

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Solution

The third proportional to 8,691.75 and 13,614.75 is: 21,326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.75 : 13,614.75 = 13,614.75 : x
  2. Step 2: Convert to fraction form
    8,691.75/13,614.75 = 13,614.75/x
  3. Step 3: Cross multiply
    8,691.75x = 13,614.75 × 13,614.75
  4. Step 4: Simplify right side
    8,691.75x = 185,361,417.56
  5. Step 5: Solve for x
    x = 185,361,417.56/8,691.75
  6. Step 6: Final answer
    x = 21,326.13

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.