Home / 13,762.80-20,644.28-3,374.56

Finding the Fourth Proportional to 13,762.80, 20,644.28 and 3,374.56

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Solution

The fourth proportional to 13,762.80, 20,644.28 and 3,374.56 is: 5,061.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762.80 : 20,644.28 = 3,374.56 : x
  2. Step 2: Convert to fraction form
    13,762.80/20,644.28 = 3,374.56/x
  3. Step 3: Cross multiply
    13,762.80x = 20,644.28 × 3,374.56
  4. Step 4: Simplify right side
    13,762.80x = 69,665,361.52
  5. Step 5: Solve for x
    x = 69,665,361.52/13,762.80
  6. Step 6: Final answer
    x = 5,061.86

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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.