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Finding the Fourth Proportional to 18,108.16, 27,166 and 5,627.84

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Solution

The fourth proportional to 18,108.16, 27,166 and 5,627.84 is: 8,442.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.16 : 27,166 = 5,627.84 : x
  2. Step 2: Convert to fraction form
    18,108.16/27,166 = 5,627.84/x
  3. Step 3: Cross multiply
    18,108.16x = 27,166 × 5,627.84
  4. Step 4: Simplify right side
    18,108.16x = 152,885,901.44
  5. Step 5: Solve for x
    x = 152,885,901.44/18,108.16
  6. Step 6: Final answer
    x = 8,442.93

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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.