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Finding the Fourth Proportional to 17,553.65, 26,330.82 and 8,191.13

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Solution

The fourth proportional to 17,553.65, 26,330.82 and 8,191.13 is: 12,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,553.65 : 26,330.82 = 8,191.13 : x
  2. Step 2: Convert to fraction form
    17,553.65/26,330.82 = 8,191.13/x
  3. Step 3: Cross multiply
    17,553.65x = 26,330.82 × 8,191.13
  4. Step 4: Simplify right side
    17,553.65x = 215,679,037.97
  5. Step 5: Solve for x
    x = 215,679,037.97/17,553.65
  6. Step 6: Final answer
    x = 12,286.85

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Double scale
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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.