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Finding the Fourth Proportional to 18,163.65, 27,245.57 and 5,513.52

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Solution

The fourth proportional to 18,163.65, 27,245.57 and 5,513.52 is: 8,270.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.65 : 27,245.57 = 5,513.52 : x
  2. Step 2: Convert to fraction form
    18,163.65/27,245.57 = 5,513.52/x
  3. Step 3: Cross multiply
    18,163.65x = 27,245.57 × 5,513.52
  4. Step 4: Simplify right side
    18,163.65x = 150,218,931.96
  5. Step 5: Solve for x
    x = 150,218,931.96/18,163.65
  6. Step 6: Final answer
    x = 8,270.30

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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.