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Finding the Fourth Proportional to 11,349.08, 15,657.42 and 8,372

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Solution

The fourth proportional to 11,349.08, 15,657.42 and 8,372 is: 11,550.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,349.08 : 15,657.42 = 8,372 : x
  2. Step 2: Convert to fraction form
    11,349.08/15,657.42 = 8,372/x
  3. Step 3: Cross multiply
    11,349.08x = 15,657.42 × 8,372
  4. Step 4: Simplify right side
    11,349.08x = 131,083,920.24
  5. Step 5: Solve for x
    x = 131,083,920.24/11,349.08
  6. Step 6: Final answer
    x = 11,550.18

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Why These Related Problems?

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