Home / 12,739.44-19,102.92-3,974.32

Finding the Fourth Proportional to 12,739.44, 19,102.92 and 3,974.32

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Solution

The fourth proportional to 12,739.44, 19,102.92 and 3,974.32 is: 5,959.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.44 : 19,102.92 = 3,974.32 : x
  2. Step 2: Convert to fraction form
    12,739.44/19,102.92 = 3,974.32/x
  3. Step 3: Cross multiply
    12,739.44x = 19,102.92 × 3,974.32
  4. Step 4: Simplify right side
    12,739.44x = 75,921,117.01
  5. Step 5: Solve for x
    x = 75,921,117.01/12,739.44
  6. Step 6: Final answer
    x = 5,959.53

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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.