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Finding the Fourth Proportional to 15,011.70, 22,517.55 and 9,179.70

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Solution

The fourth proportional to 15,011.70, 22,517.55 and 9,179.70 is: 13,769.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,011.70 : 22,517.55 = 9,179.70 : x
  2. Step 2: Convert to fraction form
    15,011.70/22,517.55 = 9,179.70/x
  3. Step 3: Cross multiply
    15,011.70x = 22,517.55 × 9,179.70
  4. Step 4: Simplify right side
    15,011.70x = 206,704,353.74
  5. Step 5: Solve for x
    x = 206,704,353.74/15,011.70
  6. Step 6: Final answer
    x = 13,769.55

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Similar ratio
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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.