Home / 18,728.33-28,082.81-6,879.06

Finding the Fourth Proportional to 18,728.33, 28,082.81 and 6,879.06

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Solution

The fourth proportional to 18,728.33, 28,082.81 and 6,879.06 is: 10,315.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.33 : 28,082.81 = 6,879.06 : x
  2. Step 2: Convert to fraction form
    18,728.33/28,082.81 = 6,879.06/x
  3. Step 3: Cross multiply
    18,728.33x = 28,082.81 × 6,879.06
  4. Step 4: Simplify right side
    18,728.33x = 193,183,300.56
  5. Step 5: Solve for x
    x = 193,183,300.56/18,728.33
  6. Step 6: Final answer
    x = 10,315.03

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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.