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Finding the Fourth Proportional to 8,170.44, 12,257.19 and 3,490.44

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Solution

The fourth proportional to 8,170.44, 12,257.19 and 3,490.44 is: 5,236.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.44 : 12,257.19 = 3,490.44 : x
  2. Step 2: Convert to fraction form
    8,170.44/12,257.19 = 3,490.44/x
  3. Step 3: Cross multiply
    8,170.44x = 12,257.19 × 3,490.44
  4. Step 4: Simplify right side
    8,170.44x = 42,782,986.26
  5. Step 5: Solve for x
    x = 42,782,986.26/8,170.44
  6. Step 6: Final answer
    x = 5,236.31

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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.