Home / 12,261.48-18,391.88-3,941.43

Finding the Fourth Proportional to 12,261.48, 18,391.88 and 3,941.43

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Solution

The fourth proportional to 12,261.48, 18,391.88 and 3,941.43 is: 5,912.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.48 : 18,391.88 = 3,941.43 : x
  2. Step 2: Convert to fraction form
    12,261.48/18,391.88 = 3,941.43/x
  3. Step 3: Cross multiply
    12,261.48x = 18,391.88 × 3,941.43
  4. Step 4: Simplify right side
    12,261.48x = 72,490,287.88
  5. Step 5: Solve for x
    x = 72,490,287.88/12,261.48
  6. Step 6: Final answer
    x = 5,912.03

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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.