Home / 11,481.90-17,218.80-4,086.60

Finding the Fourth Proportional to 11,481.90, 17,218.80 and 4,086.60

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Solution

The fourth proportional to 11,481.90, 17,218.80 and 4,086.60 is: 6,128.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.90 : 17,218.80 = 4,086.60 : x
  2. Step 2: Convert to fraction form
    11,481.90/17,218.80 = 4,086.60/x
  3. Step 3: Cross multiply
    11,481.90x = 17,218.80 × 4,086.60
  4. Step 4: Simplify right side
    11,481.90x = 70,366,348.08
  5. Step 5: Solve for x
    x = 70,366,348.08/11,481.90
  6. Step 6: Final answer
    x = 6,128.46

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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.