Home / 10,449.20-15,667.86-8,076.44

Finding the Fourth Proportional to 10,449.20, 15,667.86 and 8,076.44

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Solution

The fourth proportional to 10,449.20, 15,667.86 and 8,076.44 is: 12,110.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,449.20 : 15,667.86 = 8,076.44 : x
  2. Step 2: Convert to fraction form
    10,449.20/15,667.86 = 8,076.44/x
  3. Step 3: Cross multiply
    10,449.20x = 15,667.86 × 8,076.44
  4. Step 4: Simplify right side
    10,449.20x = 126,540,531.22
  5. Step 5: Solve for x
    x = 126,540,531.22/10,449.20
  6. Step 6: Final answer
    x = 12,110.07

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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.