Home / 13,912.85-20,869.31-4,052.37

Finding the Fourth Proportional to 13,912.85, 20,869.31 and 4,052.37

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Solution

The fourth proportional to 13,912.85, 20,869.31 and 4,052.37 is: 6,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.85 : 20,869.31 = 4,052.37 : x
  2. Step 2: Convert to fraction form
    13,912.85/20,869.31 = 4,052.37/x
  3. Step 3: Cross multiply
    13,912.85x = 20,869.31 × 4,052.37
  4. Step 4: Simplify right side
    13,912.85x = 84,570,175.90
  5. Step 5: Solve for x
    x = 84,570,175.90/13,912.85
  6. Step 6: Final answer
    x = 6,078.56

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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.