Home / 18,201.20-25,115.72-10,243.29

Finding the Fourth Proportional to 18,201.20, 25,115.72 and 10,243.29

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Solution

The fourth proportional to 18,201.20, 25,115.72 and 10,243.29 is: 14,134.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.20 : 25,115.72 = 10,243.29 : x
  2. Step 2: Convert to fraction form
    18,201.20/25,115.72 = 10,243.29/x
  3. Step 3: Cross multiply
    18,201.20x = 25,115.72 × 10,243.29
  4. Step 4: Simplify right side
    18,201.20x = 257,267,552.30
  5. Step 5: Solve for x
    x = 257,267,552.30/18,201.20
  6. Step 6: Final answer
    x = 14,134.65

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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.