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Finding the Fourth Proportional to 13,449.68, 20,167.08 and 5,550.08

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Solution

The fourth proportional to 13,449.68, 20,167.08 and 5,550.08 is: 8,322.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.68 : 20,167.08 = 5,550.08 : x
  2. Step 2: Convert to fraction form
    13,449.68/20,167.08 = 5,550.08/x
  3. Step 3: Cross multiply
    13,449.68x = 20,167.08 × 5,550.08
  4. Step 4: Simplify right side
    13,449.68x = 111,928,907.37
  5. Step 5: Solve for x
    x = 111,928,907.37/13,449.68
  6. Step 6: Final answer
    x = 8,322.05

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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.