Home / 7,982.08-11,976.32-3,365.76

Finding the Fourth Proportional to 7,982.08, 11,976.32 and 3,365.76

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Solution

The fourth proportional to 7,982.08, 11,976.32 and 3,365.76 is: 5,049.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.08 : 11,976.32 = 3,365.76 : x
  2. Step 2: Convert to fraction form
    7,982.08/11,976.32 = 3,365.76/x
  3. Step 3: Cross multiply
    7,982.08x = 11,976.32 × 3,365.76
  4. Step 4: Simplify right side
    7,982.08x = 40,309,418.80
  5. Step 5: Solve for x
    x = 40,309,418.80/7,982.08
  6. Step 6: Final answer
    x = 5,049.99

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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.