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Finding the Fourth Proportional to 7,979.74, 11,016.03 and 6,183.21

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Solution

The fourth proportional to 7,979.74, 11,016.03 and 6,183.21 is: 8,535.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.74 : 11,016.03 = 6,183.21 : x
  2. Step 2: Convert to fraction form
    7,979.74/11,016.03 = 6,183.21/x
  3. Step 3: Cross multiply
    7,979.74x = 11,016.03 × 6,183.21
  4. Step 4: Simplify right side
    7,979.74x = 68,114,426.86
  5. Step 5: Solve for x
    x = 68,114,426.86/7,979.74
  6. Step 6: Final answer
    x = 8,535.92

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1.5x scale

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.