Home / 18,912.24-28,363.68-5,763.60

Finding the Fourth Proportional to 18,912.24, 28,363.68 and 5,763.60

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Solution

The fourth proportional to 18,912.24, 28,363.68 and 5,763.60 is: 8,643.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912.24 : 28,363.68 = 5,763.60 : x
  2. Step 2: Convert to fraction form
    18,912.24/28,363.68 = 5,763.60/x
  3. Step 3: Cross multiply
    18,912.24x = 28,363.68 × 5,763.60
  4. Step 4: Simplify right side
    18,912.24x = 163,476,906.05
  5. Step 5: Solve for x
    x = 163,476,906.05/18,912.24
  6. Step 6: Final answer
    x = 8,643.97

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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.