Home / 13,872.43-20,806.37-5,972.82

Finding the Fourth Proportional to 13,872.43, 20,806.37 and 5,972.82

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Solution

The fourth proportional to 13,872.43, 20,806.37 and 5,972.82 is: 8,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.43 : 20,806.37 = 5,972.82 : x
  2. Step 2: Convert to fraction form
    13,872.43/20,806.37 = 5,972.82/x
  3. Step 3: Cross multiply
    13,872.43x = 20,806.37 × 5,972.82
  4. Step 4: Simplify right side
    13,872.43x = 124,272,742.34
  5. Step 5: Solve for x
    x = 124,272,742.34/13,872.43
  6. Step 6: Final answer
    x = 8,958.25

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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.