Home / 18,299.38-25,255.38-11,932.78

Finding the Fourth Proportional to 18,299.38, 25,255.38 and 11,932.78

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Solution

The fourth proportional to 18,299.38, 25,255.38 and 11,932.78 is: 16,468.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.38 : 25,255.38 = 11,932.78 : x
  2. Step 2: Convert to fraction form
    18,299.38/25,255.38 = 11,932.78/x
  3. Step 3: Cross multiply
    18,299.38x = 25,255.38 × 11,932.78
  4. Step 4: Simplify right side
    18,299.38x = 301,366,893.36
  5. Step 5: Solve for x
    x = 301,366,893.36/18,299.38
  6. Step 6: Final answer
    x = 16,468.69

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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.