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Finding the Fourth Proportional to 11,329.43, 16,994.05 and 7,983.93

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Solution

The fourth proportional to 11,329.43, 16,994.05 and 7,983.93 is: 11,975.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,329.43 : 16,994.05 = 7,983.93 : x
  2. Step 2: Convert to fraction form
    11,329.43/16,994.05 = 7,983.93/x
  3. Step 3: Cross multiply
    11,329.43x = 16,994.05 × 7,983.93
  4. Step 4: Simplify right side
    11,329.43x = 135,679,305.62
  5. Step 5: Solve for x
    x = 135,679,305.62/11,329.43
  6. Step 6: Final answer
    x = 11,975.83

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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.