Home / 8,126.66-12,194.40-3,449.30

Finding the Fourth Proportional to 8,126.66, 12,194.40 and 3,449.30

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Solution

The fourth proportional to 8,126.66, 12,194.40 and 3,449.30 is: 5,175.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.66 : 12,194.40 = 3,449.30 : x
  2. Step 2: Convert to fraction form
    8,126.66/12,194.40 = 3,449.30/x
  3. Step 3: Cross multiply
    8,126.66x = 12,194.40 × 3,449.30
  4. Step 4: Simplify right side
    8,126.66x = 42,062,143.92
  5. Step 5: Solve for x
    x = 42,062,143.92/8,126.66
  6. Step 6: Final answer
    x = 5,175.82

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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.