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Finding the Fourth Proportional to 13,954.56, 20,902.56 and 11,330.88

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Solution

The fourth proportional to 13,954.56, 20,902.56 and 11,330.88 is: 16,972.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954.56 : 20,902.56 = 11,330.88 : x
  2. Step 2: Convert to fraction form
    13,954.56/20,902.56 = 11,330.88/x
  3. Step 3: Cross multiply
    13,954.56x = 20,902.56 × 11,330.88
  4. Step 4: Simplify right side
    13,954.56x = 236,844,399.05
  5. Step 5: Solve for x
    x = 236,844,399.05/13,954.56
  6. Step 6: Final answer
    x = 16,972.55

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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.