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Finding the Fourth Proportional to 18,367.20, 27,493.20 and 13,183.20

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Solution

The fourth proportional to 18,367.20, 27,493.20 and 13,183.20 is: 19,733.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,367.20 : 27,493.20 = 13,183.20 : x
  2. Step 2: Convert to fraction form
    18,367.20/27,493.20 = 13,183.20/x
  3. Step 3: Cross multiply
    18,367.20x = 27,493.20 × 13,183.20
  4. Step 4: Simplify right side
    18,367.20x = 362,448,354.24
  5. Step 5: Solve for x
    x = 362,448,354.24/18,367.20
  6. Step 6: Final answer
    x = 19,733.46

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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.