Home / 8,613.17-12,919.80-3,066.73

Finding the Fourth Proportional to 8,613.17, 12,919.80 and 3,066.73

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Solution

The fourth proportional to 8,613.17, 12,919.80 and 3,066.73 is: 4,600.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.17 : 12,919.80 = 3,066.73 : x
  2. Step 2: Convert to fraction form
    8,613.17/12,919.80 = 3,066.73/x
  3. Step 3: Cross multiply
    8,613.17x = 12,919.80 × 3,066.73
  4. Step 4: Simplify right side
    8,613.17x = 39,621,517.45
  5. Step 5: Solve for x
    x = 39,621,517.45/8,613.17
  6. Step 6: Final answer
    x = 4,600.11

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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.