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Finding the Fourth Proportional to 8,972.52, 13,478.04 and 8,677.28

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Solution

The fourth proportional to 8,972.52, 13,478.04 and 8,677.28 is: 13,034.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.52 : 13,478.04 = 8,677.28 : x
  2. Step 2: Convert to fraction form
    8,972.52/13,478.04 = 8,677.28/x
  3. Step 3: Cross multiply
    8,972.52x = 13,478.04 × 8,677.28
  4. Step 4: Simplify right side
    8,972.52x = 116,952,726.93
  5. Step 5: Solve for x
    x = 116,952,726.93/8,972.52
  6. Step 6: Final answer
    x = 13,034.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.