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Finding the Fourth Proportional to 8,912.88, 13,369.48 and 2,671.44

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Solution

The fourth proportional to 8,912.88, 13,369.48 and 2,671.44 is: 4,007.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.88 : 13,369.48 = 2,671.44 : x
  2. Step 2: Convert to fraction form
    8,912.88/13,369.48 = 2,671.44/x
  3. Step 3: Cross multiply
    8,912.88x = 13,369.48 × 2,671.44
  4. Step 4: Simplify right side
    8,912.88x = 35,715,763.65
  5. Step 5: Solve for x
    x = 35,715,763.65/8,912.88
  6. Step 6: Final answer
    x = 4,007.21

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1.5x scale

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.