Home / 11,542.90-17,315.77-3,945.44

Finding the Fourth Proportional to 11,542.90, 17,315.77 and 3,945.44

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Solution

The fourth proportional to 11,542.90, 17,315.77 and 3,945.44 is: 5,918.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,542.90 : 17,315.77 = 3,945.44 : x
  2. Step 2: Convert to fraction form
    11,542.90/17,315.77 = 3,945.44/x
  3. Step 3: Cross multiply
    11,542.90x = 17,315.77 × 3,945.44
  4. Step 4: Simplify right side
    11,542.90x = 68,318,400.38
  5. Step 5: Solve for x
    x = 68,318,400.38/11,542.90
  6. Step 6: Final answer
    x = 5,918.65

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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.