Home / 11,791.90-17,689.77-3,892.18

Finding the Fourth Proportional to 11,791.90, 17,689.77 and 3,892.18

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Solution

The fourth proportional to 11,791.90, 17,689.77 and 3,892.18 is: 5,838.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.90 : 17,689.77 = 3,892.18 : x
  2. Step 2: Convert to fraction form
    11,791.90/17,689.77 = 3,892.18/x
  3. Step 3: Cross multiply
    11,791.90x = 17,689.77 × 3,892.18
  4. Step 4: Simplify right side
    11,791.90x = 68,851,769.00
  5. Step 5: Solve for x
    x = 68,851,769.00/11,791.90
  6. Step 6: Final answer
    x = 5,838.90

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1.5x scale

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.