Home / 11,838.47-17,760.60-3,940.97

Finding the Fourth Proportional to 11,838.47, 17,760.60 and 3,940.97

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Solution

The fourth proportional to 11,838.47, 17,760.60 and 3,940.97 is: 5,912.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,838.47 : 17,760.60 = 3,940.97 : x
  2. Step 2: Convert to fraction form
    11,838.47/17,760.60 = 3,940.97/x
  3. Step 3: Cross multiply
    11,838.47x = 17,760.60 × 3,940.97
  4. Step 4: Simplify right side
    11,838.47x = 69,994,036.18
  5. Step 5: Solve for x
    x = 69,994,036.18/11,838.47
  6. Step 6: Final answer
    x = 5,912.42

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1.5x scale

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.