Home / 8,231.75-12,346.32-2,685.06

Finding the Fourth Proportional to 8,231.75, 12,346.32 and 2,685.06

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Solution

The fourth proportional to 8,231.75, 12,346.32 and 2,685.06 is: 4,027.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.75 : 12,346.32 = 2,685.06 : x
  2. Step 2: Convert to fraction form
    8,231.75/12,346.32 = 2,685.06/x
  3. Step 3: Cross multiply
    8,231.75x = 12,346.32 × 2,685.06
  4. Step 4: Simplify right side
    8,231.75x = 33,150,609.98
  5. Step 5: Solve for x
    x = 33,150,609.98/8,231.75
  6. Step 6: Final answer
    x = 4,027.17

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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.