Home / 8,106.18-12,149.12-4,348.68

Finding the Fourth Proportional to 8,106.18, 12,149.12 and 4,348.68

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Solution

The fourth proportional to 8,106.18, 12,149.12 and 4,348.68 is: 6,517.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.18 : 12,149.12 = 4,348.68 : x
  2. Step 2: Convert to fraction form
    8,106.18/12,149.12 = 4,348.68/x
  3. Step 3: Cross multiply
    8,106.18x = 12,149.12 × 4,348.68
  4. Step 4: Simplify right side
    8,106.18x = 52,832,635.16
  5. Step 5: Solve for x
    x = 52,832,635.16/8,106.18
  6. Step 6: Final answer
    x = 6,517.57

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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.