Home / 11,791.07-17,689.49-3,894.08

Finding the Fourth Proportional to 11,791.07, 17,689.49 and 3,894.08

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Solution

The fourth proportional to 11,791.07, 17,689.49 and 3,894.08 is: 5,842.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.07 : 17,689.49 = 3,894.08 : x
  2. Step 2: Convert to fraction form
    11,791.07/17,689.49 = 3,894.08/x
  3. Step 3: Cross multiply
    11,791.07x = 17,689.49 × 3,894.08
  4. Step 4: Simplify right side
    11,791.07x = 68,884,195.90
  5. Step 5: Solve for x
    x = 68,884,195.90/11,791.07
  6. Step 6: Final answer
    x = 5,842.07

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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.