Home / 11,739.42-17,608.77-3,948.21

Finding the Fourth Proportional to 11,739.42, 17,608.77 and 3,948.21

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Solution

The fourth proportional to 11,739.42, 17,608.77 and 3,948.21 is: 5,922.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,739.42 : 17,608.77 = 3,948.21 : x
  2. Step 2: Convert to fraction form
    11,739.42/17,608.77 = 3,948.21/x
  3. Step 3: Cross multiply
    11,739.42x = 17,608.77 × 3,948.21
  4. Step 4: Simplify right side
    11,739.42x = 69,523,121.80
  5. Step 5: Solve for x
    x = 69,523,121.80/11,739.42
  6. Step 6: Final answer
    x = 5,922.19

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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.