Home / 11,788.79-17,685.77-3,890.97

Finding the Fourth Proportional to 11,788.79, 17,685.77 and 3,890.97

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Solution

The fourth proportional to 11,788.79, 17,685.77 and 3,890.97 is: 5,837.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,788.79 : 17,685.77 = 3,890.97 : x
  2. Step 2: Convert to fraction form
    11,788.79/17,685.77 = 3,890.97/x
  3. Step 3: Cross multiply
    11,788.79x = 17,685.77 × 3,890.97
  4. Step 4: Simplify right side
    11,788.79x = 68,814,781.04
  5. Step 5: Solve for x
    x = 68,814,781.04/11,788.79
  6. Step 6: Final answer
    x = 5,837.31

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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.