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Finding the Fourth Proportional to 18,244.56, 27,363.48 and 8,381.80

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Solution

The fourth proportional to 18,244.56, 27,363.48 and 8,381.80 is: 12,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,244.56 : 27,363.48 = 8,381.80 : x
  2. Step 2: Convert to fraction form
    18,244.56/27,363.48 = 8,381.80/x
  3. Step 3: Cross multiply
    18,244.56x = 27,363.48 × 8,381.80
  4. Step 4: Simplify right side
    18,244.56x = 229,355,216.66
  5. Step 5: Solve for x
    x = 229,355,216.66/18,244.56
  6. Step 6: Final answer
    x = 12,571.16

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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.