Home / 13,761.82-18,991.35-8,096.78

Finding the Fourth Proportional to 13,761.82, 18,991.35 and 8,096.78

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Solution

The fourth proportional to 13,761.82, 18,991.35 and 8,096.78 is: 11,173.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.82 : 18,991.35 = 8,096.78 : x
  2. Step 2: Convert to fraction form
    13,761.82/18,991.35 = 8,096.78/x
  3. Step 3: Cross multiply
    13,761.82x = 18,991.35 × 8,096.78
  4. Step 4: Simplify right side
    13,761.82x = 153,768,771.95
  5. Step 5: Solve for x
    x = 153,768,771.95/13,761.82
  6. Step 6: Final answer
    x = 11,173.58

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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.