Home / 18,785.13-25,921.67-11,229.95

Finding the Fourth Proportional to 18,785.13, 25,921.67 and 11,229.95

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Solution

The fourth proportional to 18,785.13, 25,921.67 and 11,229.95 is: 15,496.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.13 : 25,921.67 = 11,229.95 : x
  2. Step 2: Convert to fraction form
    18,785.13/25,921.67 = 11,229.95/x
  3. Step 3: Cross multiply
    18,785.13x = 25,921.67 × 11,229.95
  4. Step 4: Simplify right side
    18,785.13x = 291,098,872.26
  5. Step 5: Solve for x
    x = 291,098,872.26/18,785.13
  6. Step 6: Final answer
    x = 15,496.24

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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.