Home / 18,812.25-28,209.83-8,963.43

Finding the Fourth Proportional to 18,812.25, 28,209.83 and 8,963.43

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Solution

The fourth proportional to 18,812.25, 28,209.83 and 8,963.43 is: 13,441.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,812.25 : 28,209.83 = 8,963.43 : x
  2. Step 2: Convert to fraction form
    18,812.25/28,209.83 = 8,963.43/x
  3. Step 3: Cross multiply
    18,812.25x = 28,209.83 × 8,963.43
  4. Step 4: Simplify right side
    18,812.25x = 252,856,791.70
  5. Step 5: Solve for x
    x = 252,856,791.70/18,812.25
  6. Step 6: Final answer
    x = 13,441.07

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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.