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Finding the Fourth Proportional to 8,616, 11,888.22 and 5,077.92

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Solution

The fourth proportional to 8,616, 11,888.22 and 5,077.92 is: 7,006.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616 : 11,888.22 = 5,077.92 : x
  2. Step 2: Convert to fraction form
    8,616/11,888.22 = 5,077.92/x
  3. Step 3: Cross multiply
    8,616x = 11,888.22 × 5,077.92
  4. Step 4: Simplify right side
    8,616x = 60,367,430.10
  5. Step 5: Solve for x
    x = 60,367,430.10/8,616
  6. Step 6: Final answer
    x = 7,006.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.