Home / 9,921.38-14,880.33-3,257.78

Finding the Fourth Proportional to 9,921.38, 14,880.33 and 3,257.78

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Solution

The fourth proportional to 9,921.38, 14,880.33 and 3,257.78 is: 4,886.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.38 : 14,880.33 = 3,257.78 : x
  2. Step 2: Convert to fraction form
    9,921.38/14,880.33 = 3,257.78/x
  3. Step 3: Cross multiply
    9,921.38x = 14,880.33 × 3,257.78
  4. Step 4: Simplify right side
    9,921.38x = 48,476,767.07
  5. Step 5: Solve for x
    x = 48,476,767.07/9,921.38
  6. Step 6: Final answer
    x = 4,886.09

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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.