Home / 13,453.66-20,121.48-11,983.24

Finding the Fourth Proportional to 13,453.66, 20,121.48 and 11,983.24

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Solution

The fourth proportional to 13,453.66, 20,121.48 and 11,983.24 is: 17,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.66 : 20,121.48 = 11,983.24 : x
  2. Step 2: Convert to fraction form
    13,453.66/20,121.48 = 11,983.24/x
  3. Step 3: Cross multiply
    13,453.66x = 20,121.48 × 11,983.24
  4. Step 4: Simplify right side
    13,453.66x = 241,120,524.00
  5. Step 5: Solve for x
    x = 241,120,524.00/13,453.66
  6. Step 6: Final answer
    x = 17,922.30

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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.