Home / 11,481.66-17,220.32-3,159.60

Finding the Fourth Proportional to 11,481.66, 17,220.32 and 3,159.60

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Solution

The fourth proportional to 11,481.66, 17,220.32 and 3,159.60 is: 4,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.66 : 17,220.32 = 3,159.60 : x
  2. Step 2: Convert to fraction form
    11,481.66/17,220.32 = 3,159.60/x
  3. Step 3: Cross multiply
    11,481.66x = 17,220.32 × 3,159.60
  4. Step 4: Simplify right side
    11,481.66x = 54,409,307.27
  5. Step 5: Solve for x
    x = 54,409,307.27/11,481.66
  6. Step 6: Final answer
    x = 4,738.80

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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.