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Finding the Fourth Proportional to 11,793.72, 17,679.06 and 5,221.56

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Solution

The fourth proportional to 11,793.72, 17,679.06 and 5,221.56 is: 7,827.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,793.72 : 17,679.06 = 5,221.56 : x
  2. Step 2: Convert to fraction form
    11,793.72/17,679.06 = 5,221.56/x
  3. Step 3: Cross multiply
    11,793.72x = 17,679.06 × 5,221.56
  4. Step 4: Simplify right side
    11,793.72x = 92,312,272.53
  5. Step 5: Solve for x
    x = 92,312,272.53/11,793.72
  6. Step 6: Final answer
    x = 7,827.24

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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.