Home / 9,221.31-13,829.13-2,645.73

Finding the Fourth Proportional to 9,221.31, 13,829.13 and 2,645.73

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Solution

The fourth proportional to 9,221.31, 13,829.13 and 2,645.73 is: 3,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.31 : 13,829.13 = 2,645.73 : x
  2. Step 2: Convert to fraction form
    9,221.31/13,829.13 = 2,645.73/x
  3. Step 3: Cross multiply
    9,221.31x = 13,829.13 × 2,645.73
  4. Step 4: Simplify right side
    9,221.31x = 36,588,144.11
  5. Step 5: Solve for x
    x = 36,588,144.11/9,221.31
  6. Step 6: Final answer
    x = 3,967.78

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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.