Home / 18,619.44-27,920.36-6,764.95

Finding the Fourth Proportional to 18,619.44, 27,920.36 and 6,764.95

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Solution

The fourth proportional to 18,619.44, 27,920.36 and 6,764.95 is: 10,144.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.44 : 27,920.36 = 6,764.95 : x
  2. Step 2: Convert to fraction form
    18,619.44/27,920.36 = 6,764.95/x
  3. Step 3: Cross multiply
    18,619.44x = 27,920.36 × 6,764.95
  4. Step 4: Simplify right side
    18,619.44x = 188,879,665.96
  5. Step 5: Solve for x
    x = 188,879,665.96/18,619.44
  6. Step 6: Final answer
    x = 10,144.22

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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.