Home / 11,976.72-17,966.52-6,131.76

Finding the Fourth Proportional to 11,976.72, 17,966.52 and 6,131.76

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Solution

The fourth proportional to 11,976.72, 17,966.52 and 6,131.76 is: 9,198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,976.72 : 17,966.52 = 6,131.76 : x
  2. Step 2: Convert to fraction form
    11,976.72/17,966.52 = 6,131.76/x
  3. Step 3: Cross multiply
    11,976.72x = 17,966.52 × 6,131.76
  4. Step 4: Simplify right side
    11,976.72x = 110,166,388.68
  5. Step 5: Solve for x
    x = 110,166,388.68/11,976.72
  6. Step 6: Final answer
    x = 9,198.38

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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.