Home / 18,280.46-25,228.17-11,115.42

Finding the Fourth Proportional to 18,280.46, 25,228.17 and 11,115.42

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Solution

The fourth proportional to 18,280.46, 25,228.17 and 11,115.42 is: 15,339.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.46 : 25,228.17 = 11,115.42 : x
  2. Step 2: Convert to fraction form
    18,280.46/25,228.17 = 11,115.42/x
  3. Step 3: Cross multiply
    18,280.46x = 25,228.17 × 11,115.42
  4. Step 4: Simplify right side
    18,280.46x = 280,421,705.38
  5. Step 5: Solve for x
    x = 280,421,705.38/18,280.46
  6. Step 6: Final answer
    x = 15,339.97

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Half scale
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Double scale
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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.