Home / 7,414.38-11,121.57-2,220.26

Finding the Fourth Proportional to 7,414.38, 11,121.57 and 2,220.26

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Solution

The fourth proportional to 7,414.38, 11,121.57 and 2,220.26 is: 3,330.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,414.38 : 11,121.57 = 2,220.26 : x
  2. Step 2: Convert to fraction form
    7,414.38/11,121.57 = 2,220.26/x
  3. Step 3: Cross multiply
    7,414.38x = 11,121.57 × 2,220.26
  4. Step 4: Simplify right side
    7,414.38x = 24,692,721.40
  5. Step 5: Solve for x
    x = 24,692,721.40/7,414.38
  6. Step 6: Final answer
    x = 3,330.38

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.