Home / 7,983.20-11,974.80-2,436.60

Finding the Fourth Proportional to 7,983.20, 11,974.80 and 2,436.60

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Solution

The fourth proportional to 7,983.20, 11,974.80 and 2,436.60 is: 3,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.20 : 11,974.80 = 2,436.60 : x
  2. Step 2: Convert to fraction form
    7,983.20/11,974.80 = 2,436.60/x
  3. Step 3: Cross multiply
    7,983.20x = 11,974.80 × 2,436.60
  4. Step 4: Simplify right side
    7,983.20x = 29,177,797.68
  5. Step 5: Solve for x
    x = 29,177,797.68/7,983.20
  6. Step 6: Final answer
    x = 3,654.90

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Similar ratio
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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.