Home / 12,304.20-18,458.10-3,982.80

Finding the Fourth Proportional to 12,304.20, 18,458.10 and 3,982.80

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Solution

The fourth proportional to 12,304.20, 18,458.10 and 3,982.80 is: 5,974.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,304.20 : 18,458.10 = 3,982.80 : x
  2. Step 2: Convert to fraction form
    12,304.20/18,458.10 = 3,982.80/x
  3. Step 3: Cross multiply
    12,304.20x = 18,458.10 × 3,982.80
  4. Step 4: Simplify right side
    12,304.20x = 73,514,920.68
  5. Step 5: Solve for x
    x = 73,514,920.68/12,304.20
  6. Step 6: Final answer
    x = 5,974.78

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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.