Home / 11,965.41-17,948.79-3,645.72

Finding the Fourth Proportional to 11,965.41, 17,948.79 and 3,645.72

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Solution

The fourth proportional to 11,965.41, 17,948.79 and 3,645.72 is: 5,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.41 : 17,948.79 = 3,645.72 : x
  2. Step 2: Convert to fraction form
    11,965.41/17,948.79 = 3,645.72/x
  3. Step 3: Cross multiply
    11,965.41x = 17,948.79 × 3,645.72
  4. Step 4: Simplify right side
    11,965.41x = 65,436,262.68
  5. Step 5: Solve for x
    x = 65,436,262.68/11,965.41
  6. Step 6: Final answer
    x = 5,468.79

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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.