Home / 11,992.02-17,979.84-5,414.62

Finding the Fourth Proportional to 11,992.02, 17,979.84 and 5,414.62

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Solution

The fourth proportional to 11,992.02, 17,979.84 and 5,414.62 is: 8,118.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.02 : 17,979.84 = 5,414.62 : x
  2. Step 2: Convert to fraction form
    11,992.02/17,979.84 = 5,414.62/x
  3. Step 3: Cross multiply
    11,992.02x = 17,979.84 × 5,414.62
  4. Step 4: Simplify right side
    11,992.02x = 97,354,001.26
  5. Step 5: Solve for x
    x = 97,354,001.26/11,992.02
  6. Step 6: Final answer
    x = 8,118.23

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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.