Home / 18,115.27-27,170.17-8,117.94

Finding the Fourth Proportional to 18,115.27, 27,170.17 and 8,117.94

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Solution

The fourth proportional to 18,115.27, 27,170.17 and 8,117.94 is: 12,175.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.27 : 27,170.17 = 8,117.94 : x
  2. Step 2: Convert to fraction form
    18,115.27/27,170.17 = 8,117.94/x
  3. Step 3: Cross multiply
    18,115.27x = 27,170.17 × 8,117.94
  4. Step 4: Simplify right side
    18,115.27x = 220,565,891.44
  5. Step 5: Solve for x
    x = 220,565,891.44/18,115.27
  6. Step 6: Final answer
    x = 12,175.69

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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.