Home / 8,354.60-12,531.92-3,423.35

Finding the Fourth Proportional to 8,354.60, 12,531.92 and 3,423.35

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Solution

The fourth proportional to 8,354.60, 12,531.92 and 3,423.35 is: 5,135.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,354.60 : 12,531.92 = 3,423.35 : x
  2. Step 2: Convert to fraction form
    8,354.60/12,531.92 = 3,423.35/x
  3. Step 3: Cross multiply
    8,354.60x = 12,531.92 × 3,423.35
  4. Step 4: Simplify right side
    8,354.60x = 42,901,162.55
  5. Step 5: Solve for x
    x = 42,901,162.55/8,354.60
  6. Step 6: Final answer
    x = 5,135.03

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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.