Home / 15,517.44-21,414.11-8,443.86

Finding the Fourth Proportional to 15,517.44, 21,414.11 and 8,443.86

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Solution

The fourth proportional to 15,517.44, 21,414.11 and 8,443.86 is: 11,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.44 : 21,414.11 = 8,443.86 : x
  2. Step 2: Convert to fraction form
    15,517.44/21,414.11 = 8,443.86/x
  3. Step 3: Cross multiply
    15,517.44x = 21,414.11 × 8,443.86
  4. Step 4: Simplify right side
    15,517.44x = 180,817,704.65
  5. Step 5: Solve for x
    x = 180,817,704.65/15,517.44
  6. Step 6: Final answer
    x = 11,652.55

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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.