Home / 13,396.73-20,108.21-11,189.70

Finding the Fourth Proportional to 13,396.73, 20,108.21 and 11,189.70

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Solution

The fourth proportional to 13,396.73, 20,108.21 and 11,189.70 is: 16,795.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,396.73 : 20,108.21 = 11,189.70 : x
  2. Step 2: Convert to fraction form
    13,396.73/20,108.21 = 11,189.70/x
  3. Step 3: Cross multiply
    13,396.73x = 20,108.21 × 11,189.70
  4. Step 4: Simplify right side
    13,396.73x = 225,004,781.49
  5. Step 5: Solve for x
    x = 225,004,781.49/13,396.73
  6. Step 6: Final answer
    x = 16,795.51

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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.