Home / 8,049.25-12,072.85-3,115.52

Finding the Fourth Proportional to 8,049.25, 12,072.85 and 3,115.52

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Solution

The fourth proportional to 8,049.25, 12,072.85 and 3,115.52 is: 4,672.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,049.25 : 12,072.85 = 3,115.52 : x
  2. Step 2: Convert to fraction form
    8,049.25/12,072.85 = 3,115.52/x
  3. Step 3: Cross multiply
    8,049.25x = 12,072.85 × 3,115.52
  4. Step 4: Simplify right side
    8,049.25x = 37,613,149.16
  5. Step 5: Solve for x
    x = 37,613,149.16/8,049.25
  6. Step 6: Final answer
    x = 4,672.88

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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.