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Finding the Fourth Proportional to 19,180.56, 28,774.12 and 8,793.20

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Solution

The fourth proportional to 19,180.56, 28,774.12 and 8,793.20 is: 13,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.56 : 28,774.12 = 8,793.20 : x
  2. Step 2: Convert to fraction form
    19,180.56/28,774.12 = 8,793.20/x
  3. Step 3: Cross multiply
    19,180.56x = 28,774.12 × 8,793.20
  4. Step 4: Simplify right side
    19,180.56x = 253,016,591.98
  5. Step 5: Solve for x
    x = 253,016,591.98/19,180.56
  6. Step 6: Final answer
    x = 13,191.30

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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.