Home / 8,261.42-12,393.93-3,331.22

Finding the Fourth Proportional to 8,261.42, 12,393.93 and 3,331.22

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Solution

The fourth proportional to 8,261.42, 12,393.93 and 3,331.22 is: 4,997.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.42 : 12,393.93 = 3,331.22 : x
  2. Step 2: Convert to fraction form
    8,261.42/12,393.93 = 3,331.22/x
  3. Step 3: Cross multiply
    8,261.42x = 12,393.93 × 3,331.22
  4. Step 4: Simplify right side
    8,261.42x = 41,286,907.49
  5. Step 5: Solve for x
    x = 41,286,907.49/8,261.42
  6. Step 6: Final answer
    x = 4,997.56

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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.