Home / 13,602.22-20,400.66-3,738.96

Finding the Fourth Proportional to 13,602.22, 20,400.66 and 3,738.96

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Solution

The fourth proportional to 13,602.22, 20,400.66 and 3,738.96 is: 5,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602.22 : 20,400.66 = 3,738.96 : x
  2. Step 2: Convert to fraction form
    13,602.22/20,400.66 = 3,738.96/x
  3. Step 3: Cross multiply
    13,602.22x = 20,400.66 × 3,738.96
  4. Step 4: Simplify right side
    13,602.22x = 76,277,251.71
  5. Step 5: Solve for x
    x = 76,277,251.71/13,602.22
  6. Step 6: Final answer
    x = 5,607.71

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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.