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Finding the Fourth Proportional to 18,161.28, 27,224.72 and 8,294.72

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Solution

The fourth proportional to 18,161.28, 27,224.72 and 8,294.72 is: 12,434.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.28 : 27,224.72 = 8,294.72 : x
  2. Step 2: Convert to fraction form
    18,161.28/27,224.72 = 8,294.72/x
  3. Step 3: Cross multiply
    18,161.28x = 27,224.72 × 8,294.72
  4. Step 4: Simplify right side
    18,161.28x = 225,821,429.48
  5. Step 5: Solve for x
    x = 225,821,429.48/18,161.28
  6. Step 6: Final answer
    x = 12,434.22

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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.