Home / 7,414.75-11,122.13-2,220.63

Finding the Fourth Proportional to 7,414.75, 11,122.13 and 2,220.63

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Solution

The fourth proportional to 7,414.75, 11,122.13 and 2,220.63 is: 3,330.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,414.75 : 11,122.13 = 2,220.63 : x
  2. Step 2: Convert to fraction form
    7,414.75/11,122.13 = 2,220.63/x
  3. Step 3: Cross multiply
    7,414.75x = 11,122.13 × 2,220.63
  4. Step 4: Simplify right side
    7,414.75x = 24,698,135.54
  5. Step 5: Solve for x
    x = 24,698,135.54/7,414.75
  6. Step 6: Final answer
    x = 3,330.95

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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.