Home / 18,191.09-27,286.64-8,184.15

Finding the Fourth Proportional to 18,191.09, 27,286.64 and 8,184.15

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Solution

The fourth proportional to 18,191.09, 27,286.64 and 8,184.15 is: 12,276.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191.09 : 27,286.64 = 8,184.15 : x
  2. Step 2: Convert to fraction form
    18,191.09/27,286.64 = 8,184.15/x
  3. Step 3: Cross multiply
    18,191.09x = 27,286.64 × 8,184.15
  4. Step 4: Simplify right side
    18,191.09x = 223,317,867.78
  5. Step 5: Solve for x
    x = 223,317,867.78/18,191.09
  6. Step 6: Final answer
    x = 12,276.22

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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.