Home / 18,082.70-27,121.55-5,611.30

Finding the Fourth Proportional to 18,082.70, 27,121.55 and 5,611.30

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Solution

The fourth proportional to 18,082.70, 27,121.55 and 5,611.30 is: 8,416.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,082.70 : 27,121.55 = 5,611.30 : x
  2. Step 2: Convert to fraction form
    18,082.70/27,121.55 = 5,611.30/x
  3. Step 3: Cross multiply
    18,082.70x = 27,121.55 × 5,611.30
  4. Step 4: Simplify right side
    18,082.70x = 152,187,153.52
  5. Step 5: Solve for x
    x = 152,187,153.52/18,082.70
  6. Step 6: Final answer
    x = 8,416.17

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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.