Home / 13,441.12-20,140.92-7,201.96

Finding the Fourth Proportional to 13,441.12, 20,140.92 and 7,201.96

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Solution

The fourth proportional to 13,441.12, 20,140.92 and 7,201.96 is: 10,791.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.12 : 20,140.92 = 7,201.96 : x
  2. Step 2: Convert to fraction form
    13,441.12/20,140.92 = 7,201.96/x
  3. Step 3: Cross multiply
    13,441.12x = 20,140.92 × 7,201.96
  4. Step 4: Simplify right side
    13,441.12x = 145,054,100.20
  5. Step 5: Solve for x
    x = 145,054,100.20/13,441.12
  6. Step 6: Final answer
    x = 10,791.82

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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.