Home / 13,902.33-20,850.36-6,398.69

Finding the Fourth Proportional to 13,902.33, 20,850.36 and 6,398.69

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Solution

The fourth proportional to 13,902.33, 20,850.36 and 6,398.69 is: 9,596.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.33 : 20,850.36 = 6,398.69 : x
  2. Step 2: Convert to fraction form
    13,902.33/20,850.36 = 6,398.69/x
  3. Step 3: Cross multiply
    13,902.33x = 20,850.36 × 6,398.69
  4. Step 4: Simplify right side
    13,902.33x = 133,414,990.03
  5. Step 5: Solve for x
    x = 133,414,990.03/13,902.33
  6. Step 6: Final answer
    x = 9,596.59

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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.