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Finding the Fourth Proportional to 12,553.71, 18,800.87 and 10,901.28

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Solution

The fourth proportional to 12,553.71, 18,800.87 and 10,901.28 is: 16,326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.71 : 18,800.87 = 10,901.28 : x
  2. Step 2: Convert to fraction form
    12,553.71/18,800.87 = 10,901.28/x
  3. Step 3: Cross multiply
    12,553.71x = 18,800.87 × 10,901.28
  4. Step 4: Simplify right side
    12,553.71x = 204,953,493.61
  5. Step 5: Solve for x
    x = 204,953,493.61/12,553.71
  6. Step 6: Final answer
    x = 16,326.13

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1.5x scale

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.