Home / 8,120.88-12,179.97-2,276.28

Finding the Fourth Proportional to 8,120.88, 12,179.97 and 2,276.28

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Solution

The fourth proportional to 8,120.88, 12,179.97 and 2,276.28 is: 3,414.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.88 : 12,179.97 = 2,276.28 : x
  2. Step 2: Convert to fraction form
    8,120.88/12,179.97 = 2,276.28/x
  3. Step 3: Cross multiply
    8,120.88x = 12,179.97 × 2,276.28
  4. Step 4: Simplify right side
    8,120.88x = 27,725,022.11
  5. Step 5: Solve for x
    x = 27,725,022.11/8,120.88
  6. Step 6: Final answer
    x = 3,414.04

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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.