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Finding the Fourth Proportional to 8,279.01, 12,414.87 and 4,382.51

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Solution

The fourth proportional to 8,279.01, 12,414.87 and 4,382.51 is: 6,571.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.01 : 12,414.87 = 4,382.51 : x
  2. Step 2: Convert to fraction form
    8,279.01/12,414.87 = 4,382.51/x
  3. Step 3: Cross multiply
    8,279.01x = 12,414.87 × 4,382.51
  4. Step 4: Simplify right side
    8,279.01x = 54,408,229.85
  5. Step 5: Solve for x
    x = 54,408,229.85/8,279.01
  6. Step 6: Final answer
    x = 6,571.83

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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.