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Finding the Fourth Proportional to 8,171.69, 12,257.53 and 2,625.48

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Solution

The fourth proportional to 8,171.69, 12,257.53 and 2,625.48 is: 3,938.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.69 : 12,257.53 = 2,625.48 : x
  2. Step 2: Convert to fraction form
    8,171.69/12,257.53 = 2,625.48/x
  3. Step 3: Cross multiply
    8,171.69x = 12,257.53 × 2,625.48
  4. Step 4: Simplify right side
    8,171.69x = 32,181,893.30
  5. Step 5: Solve for x
    x = 32,181,893.30/8,171.69
  6. Step 6: Final answer
    x = 3,938.22

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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.