Home / 11,671.56-17,504.16-3,879.36

Finding the Fourth Proportional to 11,671.56, 17,504.16 and 3,879.36

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Solution

The fourth proportional to 11,671.56, 17,504.16 and 3,879.36 is: 5,817.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,671.56 : 17,504.16 = 3,879.36 : x
  2. Step 2: Convert to fraction form
    11,671.56/17,504.16 = 3,879.36/x
  3. Step 3: Cross multiply
    11,671.56x = 17,504.16 × 3,879.36
  4. Step 4: Simplify right side
    11,671.56x = 67,904,938.14
  5. Step 5: Solve for x
    x = 67,904,938.14/11,671.56
  6. Step 6: Final answer
    x = 5,817.98

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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.