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Finding the Fourth Proportional to 8,618.11, 12,840.48 and 8,052.24

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Solution

The fourth proportional to 8,618.11, 12,840.48 and 8,052.24 is: 11,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.11 : 12,840.48 = 8,052.24 : x
  2. Step 2: Convert to fraction form
    8,618.11/12,840.48 = 8,052.24/x
  3. Step 3: Cross multiply
    8,618.11x = 12,840.48 × 8,052.24
  4. Step 4: Simplify right side
    8,618.11x = 103,394,626.68
  5. Step 5: Solve for x
    x = 103,394,626.68/8,618.11
  6. Step 6: Final answer
    x = 11,997.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.