Home / 11,982.24-17,976.30-3,662.40

Finding the Fourth Proportional to 11,982.24, 17,976.30 and 3,662.40

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Solution

The fourth proportional to 11,982.24, 17,976.30 and 3,662.40 is: 5,494.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.24 : 17,976.30 = 3,662.40 : x
  2. Step 2: Convert to fraction form
    11,982.24/17,976.30 = 3,662.40/x
  3. Step 3: Cross multiply
    11,982.24x = 17,976.30 × 3,662.40
  4. Step 4: Simplify right side
    11,982.24x = 65,836,401.12
  5. Step 5: Solve for x
    x = 65,836,401.12/11,982.24
  6. Step 6: Final answer
    x = 5,494.50

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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.