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Finding the Fourth Proportional to 18,172.28, 27,260.76 and 5,692.88

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Solution

The fourth proportional to 18,172.28, 27,260.76 and 5,692.88 is: 8,540.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.28 : 27,260.76 = 5,692.88 : x
  2. Step 2: Convert to fraction form
    18,172.28/27,260.76 = 5,692.88/x
  3. Step 3: Cross multiply
    18,172.28x = 27,260.76 × 5,692.88
  4. Step 4: Simplify right side
    18,172.28x = 155,192,235.39
  5. Step 5: Solve for x
    x = 155,192,235.39/18,172.28
  6. Step 6: Final answer
    x = 8,540.05

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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.