Home / 11,836.76-17,755.91-3,938.96

Finding the Fourth Proportional to 11,836.76, 17,755.91 and 3,938.96

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Solution

The fourth proportional to 11,836.76, 17,755.91 and 3,938.96 is: 5,908.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,836.76 : 17,755.91 = 3,938.96 : x
  2. Step 2: Convert to fraction form
    11,836.76/17,755.91 = 3,938.96/x
  3. Step 3: Cross multiply
    11,836.76x = 17,755.91 × 3,938.96
  4. Step 4: Simplify right side
    11,836.76x = 69,939,710.78
  5. Step 5: Solve for x
    x = 69,939,710.78/11,836.76
  6. Step 6: Final answer
    x = 5,908.69

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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.