Home / 11,120.56-16,654.21-8,110.53

Finding the Fourth Proportional to 11,120.56, 16,654.21 and 8,110.53

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Solution

The fourth proportional to 11,120.56, 16,654.21 and 8,110.53 is: 12,146.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.56 : 16,654.21 = 8,110.53 : x
  2. Step 2: Convert to fraction form
    11,120.56/16,654.21 = 8,110.53/x
  3. Step 3: Cross multiply
    11,120.56x = 16,654.21 × 8,110.53
  4. Step 4: Simplify right side
    11,120.56x = 135,074,449.55
  5. Step 5: Solve for x
    x = 135,074,449.55/11,120.56
  6. Step 6: Final answer
    x = 12,146.37

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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.