Home / 12,644.38-18,966.57-7,025.61

Finding the Fourth Proportional to 12,644.38, 18,966.57 and 7,025.61

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Solution

The fourth proportional to 12,644.38, 18,966.57 and 7,025.61 is: 10,538.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.38 : 18,966.57 = 7,025.61 : x
  2. Step 2: Convert to fraction form
    12,644.38/18,966.57 = 7,025.61/x
  3. Step 3: Cross multiply
    12,644.38x = 18,966.57 × 7,025.61
  4. Step 4: Simplify right side
    12,644.38x = 133,251,723.86
  5. Step 5: Solve for x
    x = 133,251,723.86/12,644.38
  6. Step 6: Final answer
    x = 10,538.42

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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.