Home / 7,385.62-11,078.44-7,199.74

Finding the Fourth Proportional to 7,385.62, 11,078.44 and 7,199.74

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Solution

The fourth proportional to 7,385.62, 11,078.44 and 7,199.74 is: 10,799.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,385.62 : 11,078.44 = 7,199.74 : x
  2. Step 2: Convert to fraction form
    7,385.62/11,078.44 = 7,199.74/x
  3. Step 3: Cross multiply
    7,385.62x = 11,078.44 × 7,199.74
  4. Step 4: Simplify right side
    7,385.62x = 79,761,887.61
  5. Step 5: Solve for x
    x = 79,761,887.61/7,385.62
  6. Step 6: Final answer
    x = 10,799.62

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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.