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Finding the Fourth Proportional to 11,995.92, 17,998.02 and 4,979.70

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Solution

The fourth proportional to 11,995.92, 17,998.02 and 4,979.70 is: 7,471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.92 : 17,998.02 = 4,979.70 : x
  2. Step 2: Convert to fraction form
    11,995.92/17,998.02 = 4,979.70/x
  3. Step 3: Cross multiply
    11,995.92x = 17,998.02 × 4,979.70
  4. Step 4: Simplify right side
    11,995.92x = 89,624,740.19
  5. Step 5: Solve for x
    x = 89,624,740.19/11,995.92
  6. Step 6: Final answer
    x = 7,471.27

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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.