Home / 8,690.60-13,042.30-3,500.20

Finding the Fourth Proportional to 8,690.60, 13,042.30 and 3,500.20

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Solution

The fourth proportional to 8,690.60, 13,042.30 and 3,500.20 is: 5,252.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.60 : 13,042.30 = 3,500.20 : x
  2. Step 2: Convert to fraction form
    8,690.60/13,042.30 = 3,500.20/x
  3. Step 3: Cross multiply
    8,690.60x = 13,042.30 × 3,500.20
  4. Step 4: Simplify right side
    8,690.60x = 45,650,658.46
  5. Step 5: Solve for x
    x = 45,650,658.46/8,690.60
  6. Step 6: Final answer
    x = 5,252.88

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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.