Home / 18,121.75-27,179.49-4,794.91

Finding the Fourth Proportional to 18,121.75, 27,179.49 and 4,794.91

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Solution

The fourth proportional to 18,121.75, 27,179.49 and 4,794.91 is: 7,191.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.75 : 27,179.49 = 4,794.91 : x
  2. Step 2: Convert to fraction form
    18,121.75/27,179.49 = 4,794.91/x
  3. Step 3: Cross multiply
    18,121.75x = 27,179.49 × 4,794.91
  4. Step 4: Simplify right side
    18,121.75x = 130,323,208.40
  5. Step 5: Solve for x
    x = 130,323,208.40/18,121.75
  6. Step 6: Final answer
    x = 7,191.54

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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.