Home / 12,047.28-18,070.92-4,251.12

Finding the Fourth Proportional to 12,047.28, 18,070.92 and 4,251.12

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Solution

The fourth proportional to 12,047.28, 18,070.92 and 4,251.12 is: 6,376.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,047.28 : 18,070.92 = 4,251.12 : x
  2. Step 2: Convert to fraction form
    12,047.28/18,070.92 = 4,251.12/x
  3. Step 3: Cross multiply
    12,047.28x = 18,070.92 × 4,251.12
  4. Step 4: Simplify right side
    12,047.28x = 76,821,649.43
  5. Step 5: Solve for x
    x = 76,821,649.43/12,047.28
  6. Step 6: Final answer
    x = 6,376.68

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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.