Home / 15,791.83-21,766.76-11,194.15

Finding the Fourth Proportional to 15,791.83, 21,766.76 and 11,194.15

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Solution

The fourth proportional to 15,791.83, 21,766.76 and 11,194.15 is: 15,429.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,791.83 : 21,766.76 = 11,194.15 : x
  2. Step 2: Convert to fraction form
    15,791.83/21,766.76 = 11,194.15/x
  3. Step 3: Cross multiply
    15,791.83x = 21,766.76 × 11,194.15
  4. Step 4: Simplify right side
    15,791.83x = 243,660,257.03
  5. Step 5: Solve for x
    x = 243,660,257.03/15,791.83
  6. Step 6: Final answer
    x = 15,429.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.