Home / 8,261.56-12,392.91-3,331.25

Finding the Fourth Proportional to 8,261.56, 12,392.91 and 3,331.25

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Solution

The fourth proportional to 8,261.56, 12,392.91 and 3,331.25 is: 4,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.56 : 12,392.91 = 3,331.25 : x
  2. Step 2: Convert to fraction form
    8,261.56/12,392.91 = 3,331.25/x
  3. Step 3: Cross multiply
    8,261.56x = 12,392.91 × 3,331.25
  4. Step 4: Simplify right side
    8,261.56x = 41,283,819.47
  5. Step 5: Solve for x
    x = 41,283,819.47/8,261.56
  6. Step 6: Final answer
    x = 4,997.10

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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.