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Finding the Fourth Proportional to 8,777.06, 12,110 and 5,375.88

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Solution

The fourth proportional to 8,777.06, 12,110 and 5,375.88 is: 7,417.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.06 : 12,110 = 5,375.88 : x
  2. Step 2: Convert to fraction form
    8,777.06/12,110 = 5,375.88/x
  3. Step 3: Cross multiply
    8,777.06x = 12,110 × 5,375.88
  4. Step 4: Simplify right side
    8,777.06x = 65,101,906.80
  5. Step 5: Solve for x
    x = 65,101,906.80/8,777.06
  6. Step 6: Final answer
    x = 7,417.28

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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.