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Finding the Fourth Proportional to 18,107.07, 27,149.05 and 10,713.79

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Solution

The fourth proportional to 18,107.07, 27,149.05 and 10,713.79 is: 16,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.07 : 27,149.05 = 10,713.79 : x
  2. Step 2: Convert to fraction form
    18,107.07/27,149.05 = 10,713.79/x
  3. Step 3: Cross multiply
    18,107.07x = 27,149.05 × 10,713.79
  4. Step 4: Simplify right side
    18,107.07x = 290,869,220.40
  5. Step 5: Solve for x
    x = 290,869,220.40/18,107.07
  6. Step 6: Final answer
    x = 16,063.85

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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.