Home / 11,739.42-17,611.74-3,948

Finding the Fourth Proportional to 11,739.42, 17,611.74 and 3,948

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Solution

The fourth proportional to 11,739.42, 17,611.74 and 3,948 is: 5,922.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,739.42 : 17,611.74 = 3,948 : x
  2. Step 2: Convert to fraction form
    11,739.42/17,611.74 = 3,948/x
  3. Step 3: Cross multiply
    11,739.42x = 17,611.74 × 3,948
  4. Step 4: Simplify right side
    11,739.42x = 69,531,149.52
  5. Step 5: Solve for x
    x = 69,531,149.52/11,739.42
  6. Step 6: Final answer
    x = 5,922.88

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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.