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Finding the Fourth Proportional to 18,163.65, 27,248.57 and 6,318.32

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Solution

The fourth proportional to 18,163.65, 27,248.57 and 6,318.32 is: 9,478.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.65 : 27,248.57 = 6,318.32 : x
  2. Step 2: Convert to fraction form
    18,163.65/27,248.57 = 6,318.32/x
  3. Step 3: Cross multiply
    18,163.65x = 27,248.57 × 6,318.32
  4. Step 4: Simplify right side
    18,163.65x = 172,165,040.66
  5. Step 5: Solve for x
    x = 172,165,040.66/18,163.65
  6. Step 6: Final answer
    x = 9,478.55

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1.5x scale

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.