Home / 11,327.43-16,991.05-7,981.93

Finding the Fourth Proportional to 11,327.43, 16,991.05 and 7,981.93

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Solution

The fourth proportional to 11,327.43, 16,991.05 and 7,981.93 is: 11,972.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,327.43 : 16,991.05 = 7,981.93 : x
  2. Step 2: Convert to fraction form
    11,327.43/16,991.05 = 7,981.93/x
  3. Step 3: Cross multiply
    11,327.43x = 16,991.05 × 7,981.93
  4. Step 4: Simplify right side
    11,327.43x = 135,621,371.73
  5. Step 5: Solve for x
    x = 135,621,371.73/11,327.43
  6. Step 6: Final answer
    x = 11,972.83

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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.