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Finding the Fourth Proportional to 8,492.77, 12,729.97 and 4,104.19

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Solution

The fourth proportional to 8,492.77, 12,729.97 and 4,104.19 is: 6,151.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,492.77 : 12,729.97 = 4,104.19 : x
  2. Step 2: Convert to fraction form
    8,492.77/12,729.97 = 4,104.19/x
  3. Step 3: Cross multiply
    8,492.77x = 12,729.97 × 4,104.19
  4. Step 4: Simplify right side
    8,492.77x = 52,246,215.57
  5. Step 5: Solve for x
    x = 52,246,215.57/8,492.77
  6. Step 6: Final answer
    x = 6,151.85

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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.