Home / 9,861.38-14,787.60-2,839.79

Finding the Fourth Proportional to 9,861.38, 14,787.60 and 2,839.79

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Solution

The fourth proportional to 9,861.38, 14,787.60 and 2,839.79 is: 4,258.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861.38 : 14,787.60 = 2,839.79 : x
  2. Step 2: Convert to fraction form
    9,861.38/14,787.60 = 2,839.79/x
  3. Step 3: Cross multiply
    9,861.38x = 14,787.60 × 2,839.79
  4. Step 4: Simplify right side
    9,861.38x = 41,993,604.67
  5. Step 5: Solve for x
    x = 41,993,604.67/9,861.38
  6. Step 6: Final answer
    x = 4,258.39

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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.