Home / 10,455.11-15,679.37-3,433.97

Finding the Fourth Proportional to 10,455.11, 15,679.37 and 3,433.97

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Solution

The fourth proportional to 10,455.11, 15,679.37 and 3,433.97 is: 5,149.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.11 : 15,679.37 = 3,433.97 : x
  2. Step 2: Convert to fraction form
    10,455.11/15,679.37 = 3,433.97/x
  3. Step 3: Cross multiply
    10,455.11x = 15,679.37 × 3,433.97
  4. Step 4: Simplify right side
    10,455.11x = 53,842,469.03
  5. Step 5: Solve for x
    x = 53,842,469.03/10,455.11
  6. Step 6: Final answer
    x = 5,149.87

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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.