Home / 8,309.22-11,465.82-5,121.96

Finding the Fourth Proportional to 8,309.22, 11,465.82 and 5,121.96

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Solution

The fourth proportional to 8,309.22, 11,465.82 and 5,121.96 is: 7,067.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309.22 : 11,465.82 = 5,121.96 : x
  2. Step 2: Convert to fraction form
    8,309.22/11,465.82 = 5,121.96/x
  3. Step 3: Cross multiply
    8,309.22x = 11,465.82 × 5,121.96
  4. Step 4: Simplify right side
    8,309.22x = 58,727,471.41
  5. Step 5: Solve for x
    x = 58,727,471.41/8,309.22
  6. Step 6: Final answer
    x = 7,067.75

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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.