Home / 12,175.38-18,265.09-4,275.85

Finding the Fourth Proportional to 12,175.38, 18,265.09 and 4,275.85

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Solution

The fourth proportional to 12,175.38, 18,265.09 and 4,275.85 is: 6,414.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.38 : 18,265.09 = 4,275.85 : x
  2. Step 2: Convert to fraction form
    12,175.38/18,265.09 = 4,275.85/x
  3. Step 3: Cross multiply
    12,175.38x = 18,265.09 × 4,275.85
  4. Step 4: Simplify right side
    12,175.38x = 78,098,785.08
  5. Step 5: Solve for x
    x = 78,098,785.08/12,175.38
  6. Step 6: Final answer
    x = 6,414.48

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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.