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Finding the Fourth Proportional to 8,919.71, 13,375.34 and 3,295.53

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Solution

The fourth proportional to 8,919.71, 13,375.34 and 3,295.53 is: 4,941.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.71 : 13,375.34 = 3,295.53 : x
  2. Step 2: Convert to fraction form
    8,919.71/13,375.34 = 3,295.53/x
  3. Step 3: Cross multiply
    8,919.71x = 13,375.34 × 3,295.53
  4. Step 4: Simplify right side
    8,919.71x = 44,078,817.75
  5. Step 5: Solve for x
    x = 44,078,817.75/8,919.71
  6. Step 6: Final answer
    x = 4,941.73

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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.