Home / 17,961.78-26,940.78-4,815.48

Finding the Fourth Proportional to 17,961.78, 26,940.78 and 4,815.48

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Solution

The fourth proportional to 17,961.78, 26,940.78 and 4,815.48 is: 7,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,961.78 : 26,940.78 = 4,815.48 : x
  2. Step 2: Convert to fraction form
    17,961.78/26,940.78 = 4,815.48/x
  3. Step 3: Cross multiply
    17,961.78x = 26,940.78 × 4,815.48
  4. Step 4: Simplify right side
    17,961.78x = 129,732,787.27
  5. Step 5: Solve for x
    x = 129,732,787.27/17,961.78
  6. Step 6: Final answer
    x = 7,222.71

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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.