Home / 11,481.75-17,220.36-3,159.63

Finding the Fourth Proportional to 11,481.75, 17,220.36 and 3,159.63

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Solution

The fourth proportional to 11,481.75, 17,220.36 and 3,159.63 is: 4,738.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.75 : 17,220.36 = 3,159.63 : x
  2. Step 2: Convert to fraction form
    11,481.75/17,220.36 = 3,159.63/x
  3. Step 3: Cross multiply
    11,481.75x = 17,220.36 × 3,159.63
  4. Step 4: Simplify right side
    11,481.75x = 54,409,966.07
  5. Step 5: Solve for x
    x = 54,409,966.07/11,481.75
  6. Step 6: Final answer
    x = 4,738.82

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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.