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Finding the Fourth Proportional to 12,167.28, 18,251.28 and 8,033.76

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Solution

The fourth proportional to 12,167.28, 18,251.28 and 8,033.76 is: 12,050.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.28 : 18,251.28 = 8,033.76 : x
  2. Step 2: Convert to fraction form
    12,167.28/18,251.28 = 8,033.76/x
  3. Step 3: Cross multiply
    12,167.28x = 18,251.28 × 8,033.76
  4. Step 4: Simplify right side
    12,167.28x = 146,626,403.21
  5. Step 5: Solve for x
    x = 146,626,403.21/12,167.28
  6. Step 6: Final answer
    x = 12,050.88

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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.