Home / 12,261.04-18,392.22-3,940.43

Finding the Fourth Proportional to 12,261.04, 18,392.22 and 3,940.43

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Solution

The fourth proportional to 12,261.04, 18,392.22 and 3,940.43 is: 5,910.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.04 : 18,392.22 = 3,940.43 : x
  2. Step 2: Convert to fraction form
    12,261.04/18,392.22 = 3,940.43/x
  3. Step 3: Cross multiply
    12,261.04x = 18,392.22 × 3,940.43
  4. Step 4: Simplify right side
    12,261.04x = 72,473,163.49
  5. Step 5: Solve for x
    x = 72,473,163.49/12,261.04
  6. Step 6: Final answer
    x = 5,910.85

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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.