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Finding the Fourth Proportional to 7,979.73, 11,959.04 and 6,123.75

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Solution

The fourth proportional to 7,979.73, 11,959.04 and 6,123.75 is: 9,177.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.73 : 11,959.04 = 6,123.75 : x
  2. Step 2: Convert to fraction form
    7,979.73/11,959.04 = 6,123.75/x
  3. Step 3: Cross multiply
    7,979.73x = 11,959.04 × 6,123.75
  4. Step 4: Simplify right side
    7,979.73x = 73,234,140.58
  5. Step 5: Solve for x
    x = 73,234,140.58/7,979.73
  6. Step 6: Final answer
    x = 9,177.52

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1.5x scale

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.