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Finding the Fourth Proportional to 18,188.46, 27,286.74 and 7,095.78

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Solution

The fourth proportional to 18,188.46, 27,286.74 and 7,095.78 is: 10,645.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.46 : 27,286.74 = 7,095.78 : x
  2. Step 2: Convert to fraction form
    18,188.46/27,286.74 = 7,095.78/x
  3. Step 3: Cross multiply
    18,188.46x = 27,286.74 × 7,095.78
  4. Step 4: Simplify right side
    18,188.46x = 193,620,703.96
  5. Step 5: Solve for x
    x = 193,620,703.96/18,188.46
  6. Step 6: Final answer
    x = 10,645.25

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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.