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Finding the Fourth Proportional to 11,718.62, 17,578 and 4,793.12

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Solution

The fourth proportional to 11,718.62, 17,578 and 4,793.12 is: 7,189.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.62 : 17,578 = 4,793.12 : x
  2. Step 2: Convert to fraction form
    11,718.62/17,578 = 4,793.12/x
  3. Step 3: Cross multiply
    11,718.62x = 17,578 × 4,793.12
  4. Step 4: Simplify right side
    11,718.62x = 84,253,463.36
  5. Step 5: Solve for x
    x = 84,253,463.36/11,718.62
  6. Step 6: Final answer
    x = 7,189.71

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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.