Home / 12,741.74-19,112.26-3,381.79

Finding the Fourth Proportional to 12,741.74, 19,112.26 and 3,381.79

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Solution

The fourth proportional to 12,741.74, 19,112.26 and 3,381.79 is: 5,072.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.74 : 19,112.26 = 3,381.79 : x
  2. Step 2: Convert to fraction form
    12,741.74/19,112.26 = 3,381.79/x
  3. Step 3: Cross multiply
    12,741.74x = 19,112.26 × 3,381.79
  4. Step 4: Simplify right side
    12,741.74x = 64,633,649.75
  5. Step 5: Solve for x
    x = 64,633,649.75/12,741.74
  6. Step 6: Final answer
    x = 5,072.59

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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.