Home / 13,822.20-19,078.83-13,116.96

Finding the Fourth Proportional to 13,822.20, 19,078.83 and 13,116.96

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Solution

The fourth proportional to 13,822.20, 19,078.83 and 13,116.96 is: 18,105.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.20 : 19,078.83 = 13,116.96 : x
  2. Step 2: Convert to fraction form
    13,822.20/19,078.83 = 13,116.96/x
  3. Step 3: Cross multiply
    13,822.20x = 19,078.83 × 13,116.96
  4. Step 4: Simplify right side
    13,822.20x = 250,256,249.96
  5. Step 5: Solve for x
    x = 250,256,249.96/13,822.20
  6. Step 6: Final answer
    x = 18,105.38

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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.