Home / 18,011.82-27,017.39-8,144.21

Finding the Fourth Proportional to 18,011.82, 27,017.39 and 8,144.21

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Solution

The fourth proportional to 18,011.82, 27,017.39 and 8,144.21 is: 12,216.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,011.82 : 27,017.39 = 8,144.21 : x
  2. Step 2: Convert to fraction form
    18,011.82/27,017.39 = 8,144.21/x
  3. Step 3: Cross multiply
    18,011.82x = 27,017.39 × 8,144.21
  4. Step 4: Simplify right side
    18,011.82x = 220,035,122.00
  5. Step 5: Solve for x
    x = 220,035,122.00/18,011.82
  6. Step 6: Final answer
    x = 12,216.15

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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.