Home / 12,115.85-18,173.78-3,350.76

Finding the Fourth Proportional to 12,115.85, 18,173.78 and 3,350.76

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Solution

The fourth proportional to 12,115.85, 18,173.78 and 3,350.76 is: 5,026.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.85 : 18,173.78 = 3,350.76 : x
  2. Step 2: Convert to fraction form
    12,115.85/18,173.78 = 3,350.76/x
  3. Step 3: Cross multiply
    12,115.85x = 18,173.78 × 3,350.76
  4. Step 4: Simplify right side
    12,115.85x = 60,895,958.32
  5. Step 5: Solve for x
    x = 60,895,958.32/12,115.85
  6. Step 6: Final answer
    x = 5,026.14

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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.