Home / 18,276.45-27,414.68-5,129.97

Finding the Fourth Proportional to 18,276.45, 27,414.68 and 5,129.97

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Solution

The fourth proportional to 18,276.45, 27,414.68 and 5,129.97 is: 7,694.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.45 : 27,414.68 = 5,129.97 : x
  2. Step 2: Convert to fraction form
    18,276.45/27,414.68 = 5,129.97/x
  3. Step 3: Cross multiply
    18,276.45x = 27,414.68 × 5,129.97
  4. Step 4: Simplify right side
    18,276.45x = 140,636,460.31
  5. Step 5: Solve for x
    x = 140,636,460.31/18,276.45
  6. Step 6: Final answer
    x = 7,694.96

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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.