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Finding the Fourth Proportional to 18,265.84, 27,400.12 and 5,786.84

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Solution

The fourth proportional to 18,265.84, 27,400.12 and 5,786.84 is: 8,680.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,265.84 : 27,400.12 = 5,786.84 : x
  2. Step 2: Convert to fraction form
    18,265.84/27,400.12 = 5,786.84/x
  3. Step 3: Cross multiply
    18,265.84x = 27,400.12 × 5,786.84
  4. Step 4: Simplify right side
    18,265.84x = 158,560,110.42
  5. Step 5: Solve for x
    x = 158,560,110.42/18,265.84
  6. Step 6: Final answer
    x = 8,680.69

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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.