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Finding the Fourth Proportional to 17,788, 26,682 and 5,476

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Solution

The fourth proportional to 17,788, 26,682 and 5,476 is: 8,214

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,788 : 26,682 = 5,476 : x
  2. Step 2: Convert to fraction form
    17,788/26,682 = 5,476/x
  3. Step 3: Cross multiply
    17,788x = 26,682 × 5,476
  4. Step 4: Simplify right side
    17,788x = 146,110,632
  5. Step 5: Solve for x
    x = 146,110,632/17,788
  6. Step 6: Final answer
    x = 8,214

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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.