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Finding the Fourth Proportional to 11,363.12, 15,694.20 and 7,579.68

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Solution

The fourth proportional to 11,363.12, 15,694.20 and 7,579.68 is: 10,468.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,363.12 : 15,694.20 = 7,579.68 : x
  2. Step 2: Convert to fraction form
    11,363.12/15,694.20 = 7,579.68/x
  3. Step 3: Cross multiply
    11,363.12x = 15,694.20 × 7,579.68
  4. Step 4: Simplify right side
    11,363.12x = 118,957,013.86
  5. Step 5: Solve for x
    x = 118,957,013.86/11,363.12
  6. Step 6: Final answer
    x = 10,468.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.