Home / 8,132.60-12,175.65-7,615.92

Finding the Fourth Proportional to 8,132.60, 12,175.65 and 7,615.92

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Solution

The fourth proportional to 8,132.60, 12,175.65 and 7,615.92 is: 11,402.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.60 : 12,175.65 = 7,615.92 : x
  2. Step 2: Convert to fraction form
    8,132.60/12,175.65 = 7,615.92/x
  3. Step 3: Cross multiply
    8,132.60x = 12,175.65 × 7,615.92
  4. Step 4: Simplify right side
    8,132.60x = 92,728,776.35
  5. Step 5: Solve for x
    x = 92,728,776.35/8,132.60
  6. Step 6: Final answer
    x = 11,402.11

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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.