Home / 11,766.82-17,652.39-3,869.78

Finding the Fourth Proportional to 11,766.82, 17,652.39 and 3,869.78

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Solution

The fourth proportional to 11,766.82, 17,652.39 and 3,869.78 is: 5,805.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,766.82 : 17,652.39 = 3,869.78 : x
  2. Step 2: Convert to fraction form
    11,766.82/17,652.39 = 3,869.78/x
  3. Step 3: Cross multiply
    11,766.82x = 17,652.39 × 3,869.78
  4. Step 4: Simplify right side
    11,766.82x = 68,310,865.77
  5. Step 5: Solve for x
    x = 68,310,865.77/11,766.82
  6. Step 6: Final answer
    x = 5,805.38

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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.