Home / 18,138.06-27,169.68-13,463.36

Finding the Fourth Proportional to 18,138.06, 27,169.68 and 13,463.36

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Solution

The fourth proportional to 18,138.06, 27,169.68 and 13,463.36 is: 20,167.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.06 : 27,169.68 = 13,463.36 : x
  2. Step 2: Convert to fraction form
    18,138.06/27,169.68 = 13,463.36/x
  3. Step 3: Cross multiply
    18,138.06x = 27,169.68 × 13,463.36
  4. Step 4: Simplify right side
    18,138.06x = 365,795,182.92
  5. Step 5: Solve for x
    x = 365,795,182.92/18,138.06
  6. Step 6: Final answer
    x = 20,167.27

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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.