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Finding the Fourth Proportional to 8,838.35, 13,255.47 and 3,905.30

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Solution

The fourth proportional to 8,838.35, 13,255.47 and 3,905.30 is: 5,857.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,838.35 : 13,255.47 = 3,905.30 : x
  2. Step 2: Convert to fraction form
    8,838.35/13,255.47 = 3,905.30/x
  3. Step 3: Cross multiply
    8,838.35x = 13,255.47 × 3,905.30
  4. Step 4: Simplify right side
    8,838.35x = 51,766,520.71
  5. Step 5: Solve for x
    x = 51,766,520.71/8,838.35
  6. Step 6: Final answer
    x = 5,857.04

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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.