Home / 18,912.22-28,372.58-6,261.94

Finding the Fourth Proportional to 18,912.22, 28,372.58 and 6,261.94

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Solution

The fourth proportional to 18,912.22, 28,372.58 and 6,261.94 is: 9,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912.22 : 28,372.58 = 6,261.94 : x
  2. Step 2: Convert to fraction form
    18,912.22/28,372.58 = 6,261.94/x
  3. Step 3: Cross multiply
    18,912.22x = 28,372.58 × 6,261.94
  4. Step 4: Simplify right side
    18,912.22x = 177,667,393.61
  5. Step 5: Solve for x
    x = 177,667,393.61/18,912.22
  6. Step 6: Final answer
    x = 9,394.32

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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.