Home / 12,224.88-18,248.90-11,311.83

Finding the Fourth Proportional to 12,224.88, 18,248.90 and 11,311.83

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Solution

The fourth proportional to 12,224.88, 18,248.90 and 11,311.83 is: 16,885.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,224.88 : 18,248.90 = 11,311.83 : x
  2. Step 2: Convert to fraction form
    12,224.88/18,248.90 = 11,311.83/x
  3. Step 3: Cross multiply
    12,224.88x = 18,248.90 × 11,311.83
  4. Step 4: Simplify right side
    12,224.88x = 206,428,397.93
  5. Step 5: Solve for x
    x = 206,428,397.93/12,224.88
  6. Step 6: Final answer
    x = 16,885.92

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.