Home / 8,545.75-11,791.71-5,708.57

Finding the Fourth Proportional to 8,545.75, 11,791.71 and 5,708.57

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Solution

The fourth proportional to 8,545.75, 11,791.71 and 5,708.57 is: 7,876.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.75 : 11,791.71 = 5,708.57 : x
  2. Step 2: Convert to fraction form
    8,545.75/11,791.71 = 5,708.57/x
  3. Step 3: Cross multiply
    8,545.75x = 11,791.71 × 5,708.57
  4. Step 4: Simplify right side
    8,545.75x = 67,313,786.75
  5. Step 5: Solve for x
    x = 67,313,786.75/8,545.75
  6. Step 6: Final answer
    x = 7,876.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.