Home / 13,126.92-19,684.44-3,764.79

Finding the Fourth Proportional to 13,126.92, 19,684.44 and 3,764.79

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Solution

The fourth proportional to 13,126.92, 19,684.44 and 3,764.79 is: 5,645.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.92 : 19,684.44 = 3,764.79 : x
  2. Step 2: Convert to fraction form
    13,126.92/19,684.44 = 3,764.79/x
  3. Step 3: Cross multiply
    13,126.92x = 19,684.44 × 3,764.79
  4. Step 4: Simplify right side
    13,126.92x = 74,107,782.87
  5. Step 5: Solve for x
    x = 74,107,782.87/13,126.92
  6. Step 6: Final answer
    x = 5,645.48

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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.