Home / 18,221.30-27,338.43-9,456.02

Finding the Fourth Proportional to 18,221.30, 27,338.43 and 9,456.02

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Solution

The fourth proportional to 18,221.30, 27,338.43 and 9,456.02 is: 14,187.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.30 : 27,338.43 = 9,456.02 : x
  2. Step 2: Convert to fraction form
    18,221.30/27,338.43 = 9,456.02/x
  3. Step 3: Cross multiply
    18,221.30x = 27,338.43 × 9,456.02
  4. Step 4: Simplify right side
    18,221.30x = 258,512,740.85
  5. Step 5: Solve for x
    x = 258,512,740.85/18,221.30
  6. Step 6: Final answer
    x = 14,187.39

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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.