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Finding the Fourth Proportional to 8,805.42, 13,224.58 and 7,751.61

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Solution

The fourth proportional to 8,805.42, 13,224.58 and 7,751.61 is: 11,641.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.42 : 13,224.58 = 7,751.61 : x
  2. Step 2: Convert to fraction form
    8,805.42/13,224.58 = 7,751.61/x
  3. Step 3: Cross multiply
    8,805.42x = 13,224.58 × 7,751.61
  4. Step 4: Simplify right side
    8,805.42x = 102,511,786.57
  5. Step 5: Solve for x
    x = 102,511,786.57/8,805.42
  6. Step 6: Final answer
    x = 11,641.90

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1.5x scale

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.