Home / 12,229.42-16,883.76-8,869

Finding the Fourth Proportional to 12,229.42, 16,883.76 and 8,869

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Solution

The fourth proportional to 12,229.42, 16,883.76 and 8,869 is: 12,244.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229.42 : 16,883.76 = 8,869 : x
  2. Step 2: Convert to fraction form
    12,229.42/16,883.76 = 8,869/x
  3. Step 3: Cross multiply
    12,229.42x = 16,883.76 × 8,869
  4. Step 4: Simplify right side
    12,229.42x = 149,742,067.44
  5. Step 5: Solve for x
    x = 149,742,067.44/12,229.42
  6. Step 6: Final answer
    x = 12,244.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.