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Finding the Fourth Proportional to 7,976.66, 11,927.00 and 7,279.55

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Solution

The fourth proportional to 7,976.66, 11,927.00 and 7,279.55 is: 10,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.66 : 11,927.00 = 7,279.55 : x
  2. Step 2: Convert to fraction form
    7,976.66/11,927.00 = 7,279.55/x
  3. Step 3: Cross multiply
    7,976.66x = 11,927.00 × 7,279.55
  4. Step 4: Simplify right side
    7,976.66x = 86,823,096.82
  5. Step 5: Solve for x
    x = 86,823,096.82/7,976.66
  6. Step 6: Final answer
    x = 10,884.65

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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.