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Finding the Fourth Proportional to 8,738.92, 13,108.02 and 3,808.54

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Solution

The fourth proportional to 8,738.92, 13,108.02 and 3,808.54 is: 5,712.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,738.92 : 13,108.02 = 3,808.54 : x
  2. Step 2: Convert to fraction form
    8,738.92/13,108.02 = 3,808.54/x
  3. Step 3: Cross multiply
    8,738.92x = 13,108.02 × 3,808.54
  4. Step 4: Simplify right side
    8,738.92x = 49,922,418.49
  5. Step 5: Solve for x
    x = 49,922,418.49/8,738.92
  6. Step 6: Final answer
    x = 5,712.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.