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Finding the Fourth Proportional to 8,889.11, 13,322.12 and 3,617.97

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Solution

The fourth proportional to 8,889.11, 13,322.12 and 3,617.97 is: 5,422.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.11 : 13,322.12 = 3,617.97 : x
  2. Step 2: Convert to fraction form
    8,889.11/13,322.12 = 3,617.97/x
  3. Step 3: Cross multiply
    8,889.11x = 13,322.12 × 3,617.97
  4. Step 4: Simplify right side
    8,889.11x = 48,199,012.41
  5. Step 5: Solve for x
    x = 48,199,012.41/8,889.11
  6. Step 6: Final answer
    x = 5,422.26

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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.