Home / 8,031.12-12,046.68-3,414.12

Finding the Fourth Proportional to 8,031.12, 12,046.68 and 3,414.12

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Solution

The fourth proportional to 8,031.12, 12,046.68 and 3,414.12 is: 5,121.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,031.12 : 12,046.68 = 3,414.12 : x
  2. Step 2: Convert to fraction form
    8,031.12/12,046.68 = 3,414.12/x
  3. Step 3: Cross multiply
    8,031.12x = 12,046.68 × 3,414.12
  4. Step 4: Simplify right side
    8,031.12x = 41,128,811.12
  5. Step 5: Solve for x
    x = 41,128,811.12/8,031.12
  6. Step 6: Final answer
    x = 5,121.18

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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.