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Finding the Fourth Proportional to 8,757.44, 12,083.08 and 5,617.88

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Solution

The fourth proportional to 8,757.44, 12,083.08 and 5,617.88 is: 7,751.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.44 : 12,083.08 = 5,617.88 : x
  2. Step 2: Convert to fraction form
    8,757.44/12,083.08 = 5,617.88/x
  3. Step 3: Cross multiply
    8,757.44x = 12,083.08 × 5,617.88
  4. Step 4: Simplify right side
    8,757.44x = 67,881,293.47
  5. Step 5: Solve for x
    x = 67,881,293.47/8,757.44
  6. Step 6: Final answer
    x = 7,751.27

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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.