Home / 8,273.80-11,418.42-5,131

Finding the Fourth Proportional to 8,273.80, 11,418.42 and 5,131

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Solution

The fourth proportional to 8,273.80, 11,418.42 and 5,131 is: 7,081.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,273.80 : 11,418.42 = 5,131 : x
  2. Step 2: Convert to fraction form
    8,273.80/11,418.42 = 5,131/x
  3. Step 3: Cross multiply
    8,273.80x = 11,418.42 × 5,131
  4. Step 4: Simplify right side
    8,273.80x = 58,587,913.02
  5. Step 5: Solve for x
    x = 58,587,913.02/8,273.80
  6. Step 6: Final answer
    x = 7,081.14

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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.