Home / 13,414.21-18,520.59-11,993.29

Finding the Fourth Proportional to 13,414.21, 18,520.59 and 11,993.29

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Solution

The fourth proportional to 13,414.21, 18,520.59 and 11,993.29 is: 16,558.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.21 : 18,520.59 = 11,993.29 : x
  2. Step 2: Convert to fraction form
    13,414.21/18,520.59 = 11,993.29/x
  3. Step 3: Cross multiply
    13,414.21x = 18,520.59 × 11,993.29
  4. Step 4: Simplify right side
    13,414.21x = 222,122,806.84
  5. Step 5: Solve for x
    x = 222,122,806.84/13,414.21
  6. Step 6: Final answer
    x = 16,558.77

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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.