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Finding the Fourth Proportional to 7,959.52, 11,869.79 and 6,976.88

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Solution

The fourth proportional to 7,959.52, 11,869.79 and 6,976.88 is: 10,404.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,959.52 : 11,869.79 = 6,976.88 : x
  2. Step 2: Convert to fraction form
    7,959.52/11,869.79 = 6,976.88/x
  3. Step 3: Cross multiply
    7,959.52x = 11,869.79 × 6,976.88
  4. Step 4: Simplify right side
    7,959.52x = 82,814,156.75
  5. Step 5: Solve for x
    x = 82,814,156.75/7,959.52
  6. Step 6: Final answer
    x = 10,404.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.