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Finding the Fourth Proportional to 8,835.68, 13,251.68 and 4,388.78

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Solution

The fourth proportional to 8,835.68, 13,251.68 and 4,388.78 is: 6,582.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835.68 : 13,251.68 = 4,388.78 : x
  2. Step 2: Convert to fraction form
    8,835.68/13,251.68 = 4,388.78/x
  3. Step 3: Cross multiply
    8,835.68x = 13,251.68 × 4,388.78
  4. Step 4: Simplify right side
    8,835.68x = 58,158,708.15
  5. Step 5: Solve for x
    x = 58,158,708.15/8,835.68
  6. Step 6: Final answer
    x = 6,582.26

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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.