Home / 12,731.76-19,097.76-3,966

Finding the Fourth Proportional to 12,731.76, 19,097.76 and 3,966

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Solution

The fourth proportional to 12,731.76, 19,097.76 and 3,966 is: 5,949.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.76 : 19,097.76 = 3,966 : x
  2. Step 2: Convert to fraction form
    12,731.76/19,097.76 = 3,966/x
  3. Step 3: Cross multiply
    12,731.76x = 19,097.76 × 3,966
  4. Step 4: Simplify right side
    12,731.76x = 75,741,716.16
  5. Step 5: Solve for x
    x = 75,741,716.16/12,731.76
  6. Step 6: Final answer
    x = 5,949.04

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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.