Home / 8,172.30-12,259.80-3,241.96

Finding the Fourth Proportional to 8,172.30, 12,259.80 and 3,241.96

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Solution

The fourth proportional to 8,172.30, 12,259.80 and 3,241.96 is: 4,863.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.30 : 12,259.80 = 3,241.96 : x
  2. Step 2: Convert to fraction form
    8,172.30/12,259.80 = 3,241.96/x
  3. Step 3: Cross multiply
    8,172.30x = 12,259.80 × 3,241.96
  4. Step 4: Simplify right side
    8,172.30x = 39,745,781.21
  5. Step 5: Solve for x
    x = 39,745,781.21/8,172.30
  6. Step 6: Final answer
    x = 4,863.48

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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.