Home / 18,118.32-27,203.44-13,452.72

Finding the Fourth Proportional to 18,118.32, 27,203.44 and 13,452.72

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Solution

The fourth proportional to 18,118.32, 27,203.44 and 13,452.72 is: 20,198.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.32 : 27,203.44 = 13,452.72 : x
  2. Step 2: Convert to fraction form
    18,118.32/27,203.44 = 13,452.72/x
  3. Step 3: Cross multiply
    18,118.32x = 27,203.44 × 13,452.72
  4. Step 4: Simplify right side
    18,118.32x = 365,960,261.36
  5. Step 5: Solve for x
    x = 365,960,261.36/18,118.32
  6. Step 6: Final answer
    x = 20,198.36

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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.