Home / 11,419.88-17,129.84-3,628.71

Finding the Fourth Proportional to 11,419.88, 17,129.84 and 3,628.71

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Solution

The fourth proportional to 11,419.88, 17,129.84 and 3,628.71 is: 5,443.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,419.88 : 17,129.84 = 3,628.71 : x
  2. Step 2: Convert to fraction form
    11,419.88/17,129.84 = 3,628.71/x
  3. Step 3: Cross multiply
    11,419.88x = 17,129.84 × 3,628.71
  4. Step 4: Simplify right side
    11,419.88x = 62,159,203.56
  5. Step 5: Solve for x
    x = 62,159,203.56/11,419.88
  6. Step 6: Final answer
    x = 5,443.07

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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.