Home / 8,356.60-12,534.92-3,425.36

Finding the Fourth Proportional to 8,356.60, 12,534.92 and 3,425.36

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Solution

The fourth proportional to 8,356.60, 12,534.92 and 3,425.36 is: 5,138.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,356.60 : 12,534.92 = 3,425.36 : x
  2. Step 2: Convert to fraction form
    8,356.60/12,534.92 = 3,425.36/x
  3. Step 3: Cross multiply
    8,356.60x = 12,534.92 × 3,425.36
  4. Step 4: Simplify right side
    8,356.60x = 42,936,613.57
  5. Step 5: Solve for x
    x = 42,936,613.57/8,356.60
  6. Step 6: Final answer
    x = 5,138.05

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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.