Home / 13,489.11-20,227.59-5,163.30

Finding the Fourth Proportional to 13,489.11, 20,227.59 and 5,163.30

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Solution

The fourth proportional to 13,489.11, 20,227.59 and 5,163.30 is: 7,742.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.11 : 20,227.59 = 5,163.30 : x
  2. Step 2: Convert to fraction form
    13,489.11/20,227.59 = 5,163.30/x
  3. Step 3: Cross multiply
    13,489.11x = 20,227.59 × 5,163.30
  4. Step 4: Simplify right side
    13,489.11x = 104,441,115.45
  5. Step 5: Solve for x
    x = 104,441,115.45/13,489.11
  6. Step 6: Final answer
    x = 7,742.62

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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.