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Finding the Fourth Proportional to 12,481.80, 18,667.62 and 11,104.80

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Solution

The fourth proportional to 12,481.80, 18,667.62 and 11,104.80 is: 16,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.80 : 18,667.62 = 11,104.80 : x
  2. Step 2: Convert to fraction form
    12,481.80/18,667.62 = 11,104.80/x
  3. Step 3: Cross multiply
    12,481.80x = 18,667.62 × 11,104.80
  4. Step 4: Simplify right side
    12,481.80x = 207,300,186.58
  5. Step 5: Solve for x
    x = 207,300,186.58/12,481.80
  6. Step 6: Final answer
    x = 16,608.20

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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.