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Finding the Fourth Proportional to 11,998.73, 17,998.02 and 6,454.69

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Solution

The fourth proportional to 11,998.73, 17,998.02 and 6,454.69 is: 9,681.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998.73 : 17,998.02 = 6,454.69 : x
  2. Step 2: Convert to fraction form
    11,998.73/17,998.02 = 6,454.69/x
  3. Step 3: Cross multiply
    11,998.73x = 17,998.02 × 6,454.69
  4. Step 4: Simplify right side
    11,998.73x = 116,171,612.87
  5. Step 5: Solve for x
    x = 116,171,612.87/11,998.73
  6. Step 6: Final answer
    x = 9,681.99

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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.