Home / 13,391.25-20,099.28-6,822.33

Finding the Fourth Proportional to 13,391.25, 20,099.28 and 6,822.33

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Solution

The fourth proportional to 13,391.25, 20,099.28 and 6,822.33 is: 10,239.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.25 : 20,099.28 = 6,822.33 : x
  2. Step 2: Convert to fraction form
    13,391.25/20,099.28 = 6,822.33/x
  3. Step 3: Cross multiply
    13,391.25x = 20,099.28 × 6,822.33
  4. Step 4: Simplify right side
    13,391.25x = 137,123,920.92
  5. Step 5: Solve for x
    x = 137,123,920.92/13,391.25
  6. Step 6: Final answer
    x = 10,239.81

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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.