Home / 15,042.46-20,757.91-8,327.61

Finding the Fourth Proportional to 15,042.46, 20,757.91 and 8,327.61

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Solution

The fourth proportional to 15,042.46, 20,757.91 and 8,327.61 is: 11,491.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,042.46 : 20,757.91 = 8,327.61 : x
  2. Step 2: Convert to fraction form
    15,042.46/20,757.91 = 8,327.61/x
  3. Step 3: Cross multiply
    15,042.46x = 20,757.91 × 8,327.61
  4. Step 4: Simplify right side
    15,042.46x = 172,863,778.90
  5. Step 5: Solve for x
    x = 172,863,778.90/15,042.46
  6. Step 6: Final answer
    x = 11,491.72

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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.