Home / 13,387.82-20,173.62-11,099.16

Finding the Fourth Proportional to 13,387.82, 20,173.62 and 11,099.16

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Solution

The fourth proportional to 13,387.82, 20,173.62 and 11,099.16 is: 16,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.82 : 20,173.62 = 11,099.16 : x
  2. Step 2: Convert to fraction form
    13,387.82/20,173.62 = 11,099.16/x
  3. Step 3: Cross multiply
    13,387.82x = 20,173.62 × 11,099.16
  4. Step 4: Simplify right side
    13,387.82x = 223,910,236.16
  5. Step 5: Solve for x
    x = 223,910,236.16/13,387.82
  6. Step 6: Final answer
    x = 16,724.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.