Home / 12,743.74-19,115.27-3,383.79

Finding the Fourth Proportional to 12,743.74, 19,115.27 and 3,383.79

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Solution

The fourth proportional to 12,743.74, 19,115.27 and 3,383.79 is: 5,075.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743.74 : 19,115.27 = 3,383.79 : x
  2. Step 2: Convert to fraction form
    12,743.74/19,115.27 = 3,383.79/x
  3. Step 3: Cross multiply
    12,743.74x = 19,115.27 × 3,383.79
  4. Step 4: Simplify right side
    12,743.74x = 64,682,059.47
  5. Step 5: Solve for x
    x = 64,682,059.47/12,743.74
  6. Step 6: Final answer
    x = 5,075.59

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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.