Home / 11,840.14-17,754.11-3,939.81

Finding the Fourth Proportional to 11,840.14, 17,754.11 and 3,939.81

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Solution

The fourth proportional to 11,840.14, 17,754.11 and 3,939.81 is: 5,907.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.14 : 17,754.11 = 3,939.81 : x
  2. Step 2: Convert to fraction form
    11,840.14/17,754.11 = 3,939.81/x
  3. Step 3: Cross multiply
    11,840.14x = 17,754.11 × 3,939.81
  4. Step 4: Simplify right side
    11,840.14x = 69,947,820.12
  5. Step 5: Solve for x
    x = 69,947,820.12/11,840.14
  6. Step 6: Final answer
    x = 5,907.69

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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.