Home / 13,576.53-20,361.60-5,253.78

Finding the Fourth Proportional to 13,576.53, 20,361.60 and 5,253.78

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Solution

The fourth proportional to 13,576.53, 20,361.60 and 5,253.78 is: 7,879.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.53 : 20,361.60 = 5,253.78 : x
  2. Step 2: Convert to fraction form
    13,576.53/20,361.60 = 5,253.78/x
  3. Step 3: Cross multiply
    13,576.53x = 20,361.60 × 5,253.78
  4. Step 4: Simplify right side
    13,576.53x = 106,975,366.85
  5. Step 5: Solve for x
    x = 106,975,366.85/13,576.53
  6. Step 6: Final answer
    x = 7,879.43

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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.