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Finding the Fourth Proportional to 19,144.92, 28,707.66 and 8,751

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Solution

The fourth proportional to 19,144.92, 28,707.66 and 8,751 is: 13,122.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,144.92 : 28,707.66 = 8,751 : x
  2. Step 2: Convert to fraction form
    19,144.92/28,707.66 = 8,751/x
  3. Step 3: Cross multiply
    19,144.92x = 28,707.66 × 8,751
  4. Step 4: Simplify right side
    19,144.92x = 251,220,732.66
  5. Step 5: Solve for x
    x = 251,220,732.66/19,144.92
  6. Step 6: Final answer
    x = 13,122.06

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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.