Home / 11,963.72-17,945.08-3,198.38

Finding the Fourth Proportional to 11,963.72, 17,945.08 and 3,198.38

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Solution

The fourth proportional to 11,963.72, 17,945.08 and 3,198.38 is: 4,797.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,963.72 : 17,945.08 = 3,198.38 : x
  2. Step 2: Convert to fraction form
    11,963.72/17,945.08 = 3,198.38/x
  3. Step 3: Cross multiply
    11,963.72x = 17,945.08 × 3,198.38
  4. Step 4: Simplify right side
    11,963.72x = 57,395,087.25
  5. Step 5: Solve for x
    x = 57,395,087.25/11,963.72
  6. Step 6: Final answer
    x = 4,797.43

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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.