Home / 12,115.66-18,175.38-3,793.99

Finding the Fourth Proportional to 12,115.66, 18,175.38 and 3,793.99

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Solution

The fourth proportional to 12,115.66, 18,175.38 and 3,793.99 is: 5,691.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.66 : 18,175.38 = 3,793.99 : x
  2. Step 2: Convert to fraction form
    12,115.66/18,175.38 = 3,793.99/x
  3. Step 3: Cross multiply
    12,115.66x = 18,175.38 × 3,793.99
  4. Step 4: Simplify right side
    12,115.66x = 68,957,209.97
  5. Step 5: Solve for x
    x = 68,957,209.97/12,115.66
  6. Step 6: Final answer
    x = 5,691.58

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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.