Home / 18,175.38-25,082.42-11,105.70

Finding the Fourth Proportional to 18,175.38, 25,082.42 and 11,105.70

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Solution

The fourth proportional to 18,175.38, 25,082.42 and 11,105.70 is: 15,326.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175.38 : 25,082.42 = 11,105.70 : x
  2. Step 2: Convert to fraction form
    18,175.38/25,082.42 = 11,105.70/x
  3. Step 3: Cross multiply
    18,175.38x = 25,082.42 × 11,105.70
  4. Step 4: Simplify right side
    18,175.38x = 278,557,831.79
  5. Step 5: Solve for x
    x = 278,557,831.79/18,175.38
  6. Step 6: Final answer
    x = 15,326.11

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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.