Home / 13,921.53-20,857.68-9,230.41

Finding the Fourth Proportional to 13,921.53, 20,857.68 and 9,230.41

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Solution

The fourth proportional to 13,921.53, 20,857.68 and 9,230.41 is: 13,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.53 : 20,857.68 = 9,230.41 : x
  2. Step 2: Convert to fraction form
    13,921.53/20,857.68 = 9,230.41/x
  3. Step 3: Cross multiply
    13,921.53x = 20,857.68 × 9,230.41
  4. Step 4: Simplify right side
    13,921.53x = 192,524,964.12
  5. Step 5: Solve for x
    x = 192,524,964.12/13,921.53
  6. Step 6: Final answer
    x = 13,829.30

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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.