Home / 18,217.38-25,150.92-11,940.69

Finding the Fourth Proportional to 18,217.38, 25,150.92 and 11,940.69

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Solution

The fourth proportional to 18,217.38, 25,150.92 and 11,940.69 is: 16,485.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.38 : 25,150.92 = 11,940.69 : x
  2. Step 2: Convert to fraction form
    18,217.38/25,150.92 = 11,940.69/x
  3. Step 3: Cross multiply
    18,217.38x = 25,150.92 × 11,940.69
  4. Step 4: Simplify right side
    18,217.38x = 300,319,338.93
  5. Step 5: Solve for x
    x = 300,319,338.93/18,217.38
  6. Step 6: Final answer
    x = 16,485.32

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Half scale
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Similar ratio
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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.