Home / 13,743.07-20,600.75-5,419.87

Finding the Fourth Proportional to 13,743.07, 20,600.75 and 5,419.87

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Solution

The fourth proportional to 13,743.07, 20,600.75 and 5,419.87 is: 8,124.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.07 : 20,600.75 = 5,419.87 : x
  2. Step 2: Convert to fraction form
    13,743.07/20,600.75 = 5,419.87/x
  3. Step 3: Cross multiply
    13,743.07x = 20,600.75 × 5,419.87
  4. Step 4: Simplify right side
    13,743.07x = 111,653,348.95
  5. Step 5: Solve for x
    x = 111,653,348.95/13,743.07
  6. Step 6: Final answer
    x = 8,124.34

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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.