Home / 11,986.39-17,982.83-4,195.81

Finding the Fourth Proportional to 11,986.39, 17,982.83 and 4,195.81

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Solution

The fourth proportional to 11,986.39, 17,982.83 and 4,195.81 is: 6,294.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.39 : 17,982.83 = 4,195.81 : x
  2. Step 2: Convert to fraction form
    11,986.39/17,982.83 = 4,195.81/x
  3. Step 3: Cross multiply
    11,986.39x = 17,982.83 × 4,195.81
  4. Step 4: Simplify right side
    11,986.39x = 75,452,537.94
  5. Step 5: Solve for x
    x = 75,452,537.94/11,986.39
  6. Step 6: Final answer
    x = 6,294.85

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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.