Home / 11,910.33-17,865.19-3,145.32

Finding the Fourth Proportional to 11,910.33, 17,865.19 and 3,145.32

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Solution

The fourth proportional to 11,910.33, 17,865.19 and 3,145.32 is: 4,717.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.33 : 17,865.19 = 3,145.32 : x
  2. Step 2: Convert to fraction form
    11,910.33/17,865.19 = 3,145.32/x
  3. Step 3: Cross multiply
    11,910.33x = 17,865.19 × 3,145.32
  4. Step 4: Simplify right side
    11,910.33x = 56,191,739.41
  5. Step 5: Solve for x
    x = 56,191,739.41/11,910.33
  6. Step 6: Final answer
    x = 4,717.90

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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.