Home / 18,190.87-27,286.28-5,711.87

Finding the Fourth Proportional to 18,190.87, 27,286.28 and 5,711.87

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Solution

The fourth proportional to 18,190.87, 27,286.28 and 5,711.87 is: 8,567.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190.87 : 27,286.28 = 5,711.87 : x
  2. Step 2: Convert to fraction form
    18,190.87/27,286.28 = 5,711.87/x
  3. Step 3: Cross multiply
    18,190.87x = 27,286.28 × 5,711.87
  4. Step 4: Simplify right side
    18,190.87x = 155,855,561.99
  5. Step 5: Solve for x
    x = 155,855,561.99/18,190.87
  6. Step 6: Final answer
    x = 8,567.79

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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.