Home / 11,859.69-17,787.51-3,961.11

Finding the Fourth Proportional to 11,859.69, 17,787.51 and 3,961.11

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Solution

The fourth proportional to 11,859.69, 17,787.51 and 3,961.11 is: 5,940.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.69 : 17,787.51 = 3,961.11 : x
  2. Step 2: Convert to fraction form
    11,859.69/17,787.51 = 3,961.11/x
  3. Step 3: Cross multiply
    11,859.69x = 17,787.51 × 3,961.11
  4. Step 4: Simplify right side
    11,859.69x = 70,458,283.74
  5. Step 5: Solve for x
    x = 70,458,283.74/11,859.69
  6. Step 6: Final answer
    x = 5,940.99

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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.