Home / 12,223.97-18,326.94-3,899.19

Finding the Fourth Proportional to 12,223.97, 18,326.94 and 3,899.19

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Solution

The fourth proportional to 12,223.97, 18,326.94 and 3,899.19 is: 5,845.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223.97 : 18,326.94 = 3,899.19 : x
  2. Step 2: Convert to fraction form
    12,223.97/18,326.94 = 3,899.19/x
  3. Step 3: Cross multiply
    12,223.97x = 18,326.94 × 3,899.19
  4. Step 4: Simplify right side
    12,223.97x = 71,460,221.18
  5. Step 5: Solve for x
    x = 71,460,221.18/12,223.97
  6. Step 6: Final answer
    x = 5,845.91

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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.