Home / 7,966.62-11,949.09-2,123.82

Finding the Fourth Proportional to 7,966.62, 11,949.09 and 2,123.82

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Solution

The fourth proportional to 7,966.62, 11,949.09 and 2,123.82 is: 3,185.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,966.62 : 11,949.09 = 2,123.82 : x
  2. Step 2: Convert to fraction form
    7,966.62/11,949.09 = 2,123.82/x
  3. Step 3: Cross multiply
    7,966.62x = 11,949.09 × 2,123.82
  4. Step 4: Simplify right side
    7,966.62x = 25,377,716.32
  5. Step 5: Solve for x
    x = 25,377,716.32/7,966.62
  6. Step 6: Final answer
    x = 3,185.51

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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.