Home / 11,481.69-17,220.27-3,159.56

Finding the Fourth Proportional to 11,481.69, 17,220.27 and 3,159.56

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Solution

The fourth proportional to 11,481.69, 17,220.27 and 3,159.56 is: 4,738.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.69 : 17,220.27 = 3,159.56 : x
  2. Step 2: Convert to fraction form
    11,481.69/17,220.27 = 3,159.56/x
  3. Step 3: Cross multiply
    11,481.69x = 17,220.27 × 3,159.56
  4. Step 4: Simplify right side
    11,481.69x = 54,408,476.28
  5. Step 5: Solve for x
    x = 54,408,476.28/11,481.69
  6. Step 6: Final answer
    x = 4,738.72

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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.