Home / 11,979.09-17,961.11-3,656.34

Finding the Fourth Proportional to 11,979.09, 17,961.11 and 3,656.34

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Solution

The fourth proportional to 11,979.09, 17,961.11 and 3,656.34 is: 5,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.09 : 17,961.11 = 3,656.34 : x
  2. Step 2: Convert to fraction form
    11,979.09/17,961.11 = 3,656.34/x
  3. Step 3: Cross multiply
    11,979.09x = 17,961.11 × 3,656.34
  4. Step 4: Simplify right side
    11,979.09x = 65,671,906.66
  5. Step 5: Solve for x
    x = 65,671,906.66/11,979.09
  6. Step 6: Final answer
    x = 5,482.21

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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.