Home / 13,964.72-20,945.46-5,198.66

Finding the Fourth Proportional to 13,964.72, 20,945.46 and 5,198.66

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Solution

The fourth proportional to 13,964.72, 20,945.46 and 5,198.66 is: 7,797.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,964.72 : 20,945.46 = 5,198.66 : x
  2. Step 2: Convert to fraction form
    13,964.72/20,945.46 = 5,198.66/x
  3. Step 3: Cross multiply
    13,964.72x = 20,945.46 × 5,198.66
  4. Step 4: Simplify right side
    13,964.72x = 108,888,325.08
  5. Step 5: Solve for x
    x = 108,888,325.08/13,964.72
  6. Step 6: Final answer
    x = 7,797.39

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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.