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Finding the Fourth Proportional to 18,391.71, 27,584.93 and 5,910.09

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Solution

The fourth proportional to 18,391.71, 27,584.93 and 5,910.09 is: 8,864.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,391.71 : 27,584.93 = 5,910.09 : x
  2. Step 2: Convert to fraction form
    18,391.71/27,584.93 = 5,910.09/x
  3. Step 3: Cross multiply
    18,391.71x = 27,584.93 × 5,910.09
  4. Step 4: Simplify right side
    18,391.71x = 163,029,391.24
  5. Step 5: Solve for x
    x = 163,029,391.24/18,391.71
  6. Step 6: Final answer
    x = 8,864.29

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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.