Home / 11,963.40-17,939.94-3,955.92

Finding the Fourth Proportional to 11,963.40, 17,939.94 and 3,955.92

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Solution

The fourth proportional to 11,963.40, 17,939.94 and 3,955.92 is: 5,932.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,963.40 : 17,939.94 = 3,955.92 : x
  2. Step 2: Convert to fraction form
    11,963.40/17,939.94 = 3,955.92/x
  3. Step 3: Cross multiply
    11,963.40x = 17,939.94 × 3,955.92
  4. Step 4: Simplify right side
    11,963.40x = 70,968,967.44
  5. Step 5: Solve for x
    x = 70,968,967.44/11,963.40
  6. Step 6: Final answer
    x = 5,932.17

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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.