Home / 12,217.38-16,861.20-7,437.66

Finding the Fourth Proportional to 12,217.38, 16,861.20 and 7,437.66

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Solution

The fourth proportional to 12,217.38, 16,861.20 and 7,437.66 is: 10,264.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.38 : 16,861.20 = 7,437.66 : x
  2. Step 2: Convert to fraction form
    12,217.38/16,861.20 = 7,437.66/x
  3. Step 3: Cross multiply
    12,217.38x = 16,861.20 × 7,437.66
  4. Step 4: Simplify right side
    12,217.38x = 125,407,872.79
  5. Step 5: Solve for x
    x = 125,407,872.79/12,217.38
  6. Step 6: Final answer
    x = 10,264.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.