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Finding the Fourth Proportional to 18,102.28, 27,153.20 and 4,954.64

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Solution

The fourth proportional to 18,102.28, 27,153.20 and 4,954.64 is: 7,431.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,102.28 : 27,153.20 = 4,954.64 : x
  2. Step 2: Convert to fraction form
    18,102.28/27,153.20 = 4,954.64/x
  3. Step 3: Cross multiply
    18,102.28x = 27,153.20 × 4,954.64
  4. Step 4: Simplify right side
    18,102.28x = 134,534,330.85
  5. Step 5: Solve for x
    x = 134,534,330.85/18,102.28
  6. Step 6: Final answer
    x = 7,431.90

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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.