Home / 8,119.14-12,179.17-2,276.21

Finding the Fourth Proportional to 8,119.14, 12,179.17 and 2,276.21

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Solution

The fourth proportional to 8,119.14, 12,179.17 and 2,276.21 is: 3,414.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.14 : 12,179.17 = 2,276.21 : x
  2. Step 2: Convert to fraction form
    8,119.14/12,179.17 = 2,276.21/x
  3. Step 3: Cross multiply
    8,119.14x = 12,179.17 × 2,276.21
  4. Step 4: Simplify right side
    8,119.14x = 27,722,287.65
  5. Step 5: Solve for x
    x = 27,722,287.65/8,119.14
  6. Step 6: Final answer
    x = 3,414.44

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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.