Home / 8,240.31-12,361.03-3,309.94

Finding the Fourth Proportional to 8,240.31, 12,361.03 and 3,309.94

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Solution

The fourth proportional to 8,240.31, 12,361.03 and 3,309.94 is: 4,965.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.31 : 12,361.03 = 3,309.94 : x
  2. Step 2: Convert to fraction form
    8,240.31/12,361.03 = 3,309.94/x
  3. Step 3: Cross multiply
    8,240.31x = 12,361.03 × 3,309.94
  4. Step 4: Simplify right side
    8,240.31x = 40,914,251.09
  5. Step 5: Solve for x
    x = 40,914,251.09/8,240.31
  6. Step 6: Final answer
    x = 4,965.14

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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.