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Finding the Fourth Proportional to 11,788, 17,682 and 3,580

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Solution

The fourth proportional to 11,788, 17,682 and 3,580 is: 5,370

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,788 : 17,682 = 3,580 : x
  2. Step 2: Convert to fraction form
    11,788/17,682 = 3,580/x
  3. Step 3: Cross multiply
    11,788x = 17,682 × 3,580
  4. Step 4: Simplify right side
    11,788x = 63,301,560
  5. Step 5: Solve for x
    x = 63,301,560/11,788
  6. Step 6: Final answer
    x = 5,370

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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.