Home / 13,629.72-20,447.46-4,395

Finding the Fourth Proportional to 13,629.72, 20,447.46 and 4,395

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Solution

The fourth proportional to 13,629.72, 20,447.46 and 4,395 is: 6,593.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.72 : 20,447.46 = 4,395 : x
  2. Step 2: Convert to fraction form
    13,629.72/20,447.46 = 4,395/x
  3. Step 3: Cross multiply
    13,629.72x = 20,447.46 × 4,395
  4. Step 4: Simplify right side
    13,629.72x = 89,866,586.70
  5. Step 5: Solve for x
    x = 89,866,586.70/13,629.72
  6. Step 6: Final answer
    x = 6,593.43

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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.