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Finding the Fourth Proportional to 18,103.74, 27,158.22 and 6,863.22

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Solution

The fourth proportional to 18,103.74, 27,158.22 and 6,863.22 is: 10,295.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103.74 : 27,158.22 = 6,863.22 : x
  2. Step 2: Convert to fraction form
    18,103.74/27,158.22 = 6,863.22/x
  3. Step 3: Cross multiply
    18,103.74x = 27,158.22 × 6,863.22
  4. Step 4: Simplify right side
    18,103.74x = 186,392,838.67
  5. Step 5: Solve for x
    x = 186,392,838.67/18,103.74
  6. Step 6: Final answer
    x = 10,295.82

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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.