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Finding the Fourth Proportional to 18,617.08, 27,902.86 and 8,743.16

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Solution

The fourth proportional to 18,617.08, 27,902.86 and 8,743.16 is: 13,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.08 : 27,902.86 = 8,743.16 : x
  2. Step 2: Convert to fraction form
    18,617.08/27,902.86 = 8,743.16/x
  3. Step 3: Cross multiply
    18,617.08x = 27,902.86 × 8,743.16
  4. Step 4: Simplify right side
    18,617.08x = 243,959,169.44
  5. Step 5: Solve for x
    x = 243,959,169.44/18,617.08
  6. Step 6: Final answer
    x = 13,104.05

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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.