Home / 8,340.12-12,517.26-3,663.90

Finding the Fourth Proportional to 8,340.12, 12,517.26 and 3,663.90

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Solution

The fourth proportional to 8,340.12, 12,517.26 and 3,663.90 is: 5,498.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.12 : 12,517.26 = 3,663.90 : x
  2. Step 2: Convert to fraction form
    8,340.12/12,517.26 = 3,663.90/x
  3. Step 3: Cross multiply
    8,340.12x = 12,517.26 × 3,663.90
  4. Step 4: Simplify right side
    8,340.12x = 45,861,988.91
  5. Step 5: Solve for x
    x = 45,861,988.91/8,340.12
  6. Step 6: Final answer
    x = 5,498.96

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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.