Home / 11,910.11-17,867.87-3,905.31

Finding the Fourth Proportional to 11,910.11, 17,867.87 and 3,905.31

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Solution

The fourth proportional to 11,910.11, 17,867.87 and 3,905.31 is: 5,858.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.11 : 17,867.87 = 3,905.31 : x
  2. Step 2: Convert to fraction form
    11,910.11/17,867.87 = 3,905.31/x
  3. Step 3: Cross multiply
    11,910.11x = 17,867.87 × 3,905.31
  4. Step 4: Simplify right side
    11,910.11x = 69,779,622.53
  5. Step 5: Solve for x
    x = 69,779,622.53/11,910.11
  6. Step 6: Final answer
    x = 5,858.85

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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.