Home / 11,977.11-17,965.76-3,658.41

Finding the Fourth Proportional to 11,977.11, 17,965.76 and 3,658.41

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Solution

The fourth proportional to 11,977.11, 17,965.76 and 3,658.41 is: 5,487.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.11 : 17,965.76 = 3,658.41 : x
  2. Step 2: Convert to fraction form
    11,977.11/17,965.76 = 3,658.41/x
  3. Step 3: Cross multiply
    11,977.11x = 17,965.76 × 3,658.41
  4. Step 4: Simplify right side
    11,977.11x = 65,726,097.75
  5. Step 5: Solve for x
    x = 65,726,097.75/11,977.11
  6. Step 6: Final answer
    x = 5,487.64

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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.