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Finding the Fourth Proportional to 13,607.25, 20,410.89 and 5,399.25

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Solution

The fourth proportional to 13,607.25, 20,410.89 and 5,399.25 is: 8,098.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,607.25 : 20,410.89 = 5,399.25 : x
  2. Step 2: Convert to fraction form
    13,607.25/20,410.89 = 5,399.25/x
  3. Step 3: Cross multiply
    13,607.25x = 20,410.89 × 5,399.25
  4. Step 4: Simplify right side
    13,607.25x = 110,203,497.83
  5. Step 5: Solve for x
    x = 110,203,497.83/13,607.25
  6. Step 6: Final answer
    x = 8,098.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.