Home / 13,099.44-18,072.18-9,321.42

Finding the Fourth Proportional to 13,099.44, 18,072.18 and 9,321.42

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Solution

The fourth proportional to 13,099.44, 18,072.18 and 9,321.42 is: 12,859.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,099.44 : 18,072.18 = 9,321.42 : x
  2. Step 2: Convert to fraction form
    13,099.44/18,072.18 = 9,321.42/x
  3. Step 3: Cross multiply
    13,099.44x = 18,072.18 × 9,321.42
  4. Step 4: Simplify right side
    13,099.44x = 168,458,380.10
  5. Step 5: Solve for x
    x = 168,458,380.10/13,099.44
  6. Step 6: Final answer
    x = 12,859.97

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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.