Home / 15,791.25-23,701.77-11,618.55

Finding the Fourth Proportional to 15,791.25, 23,701.77 and 11,618.55

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Solution

The fourth proportional to 15,791.25, 23,701.77 and 11,618.55 is: 17,438.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,791.25 : 23,701.77 = 11,618.55 : x
  2. Step 2: Convert to fraction form
    15,791.25/23,701.77 = 11,618.55/x
  3. Step 3: Cross multiply
    15,791.25x = 23,701.77 × 11,618.55
  4. Step 4: Simplify right side
    15,791.25x = 275,380,199.83
  5. Step 5: Solve for x
    x = 275,380,199.83/15,791.25
  6. Step 6: Final answer
    x = 17,438.78

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1.5x scale

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.