Home / 11,836.90-17,751.70-3,937.75

Finding the Fourth Proportional to 11,836.90, 17,751.70 and 3,937.75

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Solution

The fourth proportional to 11,836.90, 17,751.70 and 3,937.75 is: 5,905.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,836.90 : 17,751.70 = 3,937.75 : x
  2. Step 2: Convert to fraction form
    11,836.90/17,751.70 = 3,937.75/x
  3. Step 3: Cross multiply
    11,836.90x = 17,751.70 × 3,937.75
  4. Step 4: Simplify right side
    11,836.90x = 69,901,756.68
  5. Step 5: Solve for x
    x = 69,901,756.68/11,836.90
  6. Step 6: Final answer
    x = 5,905.41

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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.