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Finding the Fourth Proportional to 8,751.66, 13,129.92 and 3,821.73

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Solution

The fourth proportional to 8,751.66, 13,129.92 and 3,821.73 is: 5,733.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.66 : 13,129.92 = 3,821.73 : x
  2. Step 2: Convert to fraction form
    8,751.66/13,129.92 = 3,821.73/x
  3. Step 3: Cross multiply
    8,751.66x = 13,129.92 × 3,821.73
  4. Step 4: Simplify right side
    8,751.66x = 50,179,009.16
  5. Step 5: Solve for x
    x = 50,179,009.16/8,751.66
  6. Step 6: Final answer
    x = 5,733.66

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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.