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Finding the Fourth Proportional to 8,367.44, 12,553.08 and 2,820.65

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Solution

The fourth proportional to 8,367.44, 12,553.08 and 2,820.65 is: 4,231.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.44 : 12,553.08 = 2,820.65 : x
  2. Step 2: Convert to fraction form
    8,367.44/12,553.08 = 2,820.65/x
  3. Step 3: Cross multiply
    8,367.44x = 12,553.08 × 2,820.65
  4. Step 4: Simplify right side
    8,367.44x = 35,407,845.10
  5. Step 5: Solve for x
    x = 35,407,845.10/8,367.44
  6. Step 6: Final answer
    x = 4,231.62

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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.