Home / 13,811.73-20,735.66-8,199.64

Finding the Fourth Proportional to 13,811.73, 20,735.66 and 8,199.64

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Solution

The fourth proportional to 13,811.73, 20,735.66 and 8,199.64 is: 12,310.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.73 : 20,735.66 = 8,199.64 : x
  2. Step 2: Convert to fraction form
    13,811.73/20,735.66 = 8,199.64/x
  3. Step 3: Cross multiply
    13,811.73x = 20,735.66 × 8,199.64
  4. Step 4: Simplify right side
    13,811.73x = 170,024,906.16
  5. Step 5: Solve for x
    x = 170,024,906.16/13,811.73
  6. Step 6: Final answer
    x = 12,310.19

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1.5x scale

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.