Home / 11,821.36-17,732.90-3,387.74

Finding the Fourth Proportional to 11,821.36, 17,732.90 and 3,387.74

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Solution

The fourth proportional to 11,821.36, 17,732.90 and 3,387.74 is: 5,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.36 : 17,732.90 = 3,387.74 : x
  2. Step 2: Convert to fraction form
    11,821.36/17,732.90 = 3,387.74/x
  3. Step 3: Cross multiply
    11,821.36x = 17,732.90 × 3,387.74
  4. Step 4: Simplify right side
    11,821.36x = 60,074,464.67
  5. Step 5: Solve for x
    x = 60,074,464.67/11,821.36
  6. Step 6: Final answer
    x = 5,081.86

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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.