Home / 13,380.92-20,083.84-6,812.02

Finding the Fourth Proportional to 13,380.92, 20,083.84 and 6,812.02

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Solution

The fourth proportional to 13,380.92, 20,083.84 and 6,812.02 is: 10,224.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.92 : 20,083.84 = 6,812.02 : x
  2. Step 2: Convert to fraction form
    13,380.92/20,083.84 = 6,812.02/x
  3. Step 3: Cross multiply
    13,380.92x = 20,083.84 × 6,812.02
  4. Step 4: Simplify right side
    13,380.92x = 136,811,519.76
  5. Step 5: Solve for x
    x = 136,811,519.76/13,380.92
  6. Step 6: Final answer
    x = 10,224.37

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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.