Home / 12,276.97-18,414.41-4,879.44

Finding the Fourth Proportional to 12,276.97, 18,414.41 and 4,879.44

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Solution

The fourth proportional to 12,276.97, 18,414.41 and 4,879.44 is: 7,318.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.97 : 18,414.41 = 4,879.44 : x
  2. Step 2: Convert to fraction form
    12,276.97/18,414.41 = 4,879.44/x
  3. Step 3: Cross multiply
    12,276.97x = 18,414.41 × 4,879.44
  4. Step 4: Simplify right side
    12,276.97x = 89,851,984.33
  5. Step 5: Solve for x
    x = 89,851,984.33/12,276.97
  6. Step 6: Final answer
    x = 7,318.74

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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.