Home / 13,599.21-20,399.04-3,738.43

Finding the Fourth Proportional to 13,599.21, 20,399.04 and 3,738.43

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Solution

The fourth proportional to 13,599.21, 20,399.04 and 3,738.43 is: 5,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.21 : 20,399.04 = 3,738.43 : x
  2. Step 2: Convert to fraction form
    13,599.21/20,399.04 = 3,738.43/x
  3. Step 3: Cross multiply
    13,599.21x = 20,399.04 × 3,738.43
  4. Step 4: Simplify right side
    13,599.21x = 76,260,383.11
  5. Step 5: Solve for x
    x = 76,260,383.11/13,599.21
  6. Step 6: Final answer
    x = 5,607.71

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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.