Home / 11,449.54-17,174.19-3,129.55

Finding the Fourth Proportional to 11,449.54, 17,174.19 and 3,129.55

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Solution

The fourth proportional to 11,449.54, 17,174.19 and 3,129.55 is: 4,694.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,449.54 : 17,174.19 = 3,129.55 : x
  2. Step 2: Convert to fraction form
    11,449.54/17,174.19 = 3,129.55/x
  3. Step 3: Cross multiply
    11,449.54x = 17,174.19 × 3,129.55
  4. Step 4: Simplify right side
    11,449.54x = 53,747,486.31
  5. Step 5: Solve for x
    x = 53,747,486.31/11,449.54
  6. Step 6: Final answer
    x = 4,694.29

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1.5x scale

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.