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Finding the Fourth Proportional to 16,591.56, 22,901.16 and 9,881.88

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Solution

The fourth proportional to 16,591.56, 22,901.16 and 9,881.88 is: 13,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,591.56 : 22,901.16 = 9,881.88 : x
  2. Step 2: Convert to fraction form
    16,591.56/22,901.16 = 9,881.88/x
  3. Step 3: Cross multiply
    16,591.56x = 22,901.16 × 9,881.88
  4. Step 4: Simplify right side
    16,591.56x = 226,306,514.98
  5. Step 5: Solve for x
    x = 226,306,514.98/16,591.56
  6. Step 6: Final answer
    x = 13,639.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.