Home / 18,107.85-27,161.83-4,960.20

Finding the Fourth Proportional to 18,107.85, 27,161.83 and 4,960.20

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Solution

The fourth proportional to 18,107.85, 27,161.83 and 4,960.20 is: 7,440.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.85 : 27,161.83 = 4,960.20 : x
  2. Step 2: Convert to fraction form
    18,107.85/27,161.83 = 4,960.20/x
  3. Step 3: Cross multiply
    18,107.85x = 27,161.83 × 4,960.20
  4. Step 4: Simplify right side
    18,107.85x = 134,728,217.22
  5. Step 5: Solve for x
    x = 134,728,217.22/18,107.85
  6. Step 6: Final answer
    x = 7,440.32

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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.