Home / 18,227.64-27,321.96-13,017.72

Finding the Fourth Proportional to 18,227.64, 27,321.96 and 13,017.72

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Solution

The fourth proportional to 18,227.64, 27,321.96 and 13,017.72 is: 19,512.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,227.64 : 27,321.96 = 13,017.72 : x
  2. Step 2: Convert to fraction form
    18,227.64/27,321.96 = 13,017.72/x
  3. Step 3: Cross multiply
    18,227.64x = 27,321.96 × 13,017.72
  4. Step 4: Simplify right side
    18,227.64x = 355,669,625.13
  5. Step 5: Solve for x
    x = 355,669,625.13/18,227.64
  6. Step 6: Final answer
    x = 19,512.65

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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.