Home / 11,982.80-17,974.25-3,662.79

Finding the Fourth Proportional to 11,982.80, 17,974.25 and 3,662.79

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Solution

The fourth proportional to 11,982.80, 17,974.25 and 3,662.79 is: 5,494.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.80 : 17,974.25 = 3,662.79 : x
  2. Step 2: Convert to fraction form
    11,982.80/17,974.25 = 3,662.79/x
  3. Step 3: Cross multiply
    11,982.80x = 17,974.25 × 3,662.79
  4. Step 4: Simplify right side
    11,982.80x = 65,835,835.75
  5. Step 5: Solve for x
    x = 65,835,835.75/11,982.80
  6. Step 6: Final answer
    x = 5,494.19

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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.