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Finding the Fourth Proportional to 15,279.12, 22,899.51 and 8,258.85

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Solution

The fourth proportional to 15,279.12, 22,899.51 and 8,258.85 is: 12,377.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,279.12 : 22,899.51 = 8,258.85 : x
  2. Step 2: Convert to fraction form
    15,279.12/22,899.51 = 8,258.85/x
  3. Step 3: Cross multiply
    15,279.12x = 22,899.51 × 8,258.85
  4. Step 4: Simplify right side
    15,279.12x = 189,123,618.16
  5. Step 5: Solve for x
    x = 189,123,618.16/15,279.12
  6. Step 6: Final answer
    x = 12,377.91

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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.