Home / 13,997.73-20,989.38-4,135.73

Finding the Fourth Proportional to 13,997.73, 20,989.38 and 4,135.73

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Solution

The fourth proportional to 13,997.73, 20,989.38 and 4,135.73 is: 6,201.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.73 : 20,989.38 = 4,135.73 : x
  2. Step 2: Convert to fraction form
    13,997.73/20,989.38 = 4,135.73/x
  3. Step 3: Cross multiply
    13,997.73x = 20,989.38 × 4,135.73
  4. Step 4: Simplify right side
    13,997.73x = 86,806,295.85
  5. Step 5: Solve for x
    x = 86,806,295.85/13,997.73
  6. Step 6: Final answer
    x = 6,201.46

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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.