Home / 13,402.88-20,104.31-9,181.97

Finding the Fourth Proportional to 13,402.88, 20,104.31 and 9,181.97

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Solution

The fourth proportional to 13,402.88, 20,104.31 and 9,181.97 is: 13,772.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.88 : 20,104.31 = 9,181.97 : x
  2. Step 2: Convert to fraction form
    13,402.88/20,104.31 = 9,181.97/x
  3. Step 3: Cross multiply
    13,402.88x = 20,104.31 × 9,181.97
  4. Step 4: Simplify right side
    13,402.88x = 184,597,093.72
  5. Step 5: Solve for x
    x = 184,597,093.72/13,402.88
  6. Step 6: Final answer
    x = 13,772.95

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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.