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Finding the Fourth Proportional to 8,716.92, 12,039.15 and 6,751.26

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Solution

The fourth proportional to 8,716.92, 12,039.15 and 6,751.26 is: 9,324.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.92 : 12,039.15 = 6,751.26 : x
  2. Step 2: Convert to fraction form
    8,716.92/12,039.15 = 6,751.26/x
  3. Step 3: Cross multiply
    8,716.92x = 12,039.15 × 6,751.26
  4. Step 4: Simplify right side
    8,716.92x = 81,279,431.83
  5. Step 5: Solve for x
    x = 81,279,431.83/8,716.92
  6. Step 6: Final answer
    x = 9,324.33

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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.