Home / 10,781.73-16,170.17-2,991.15

Finding the Fourth Proportional to 10,781.73, 16,170.17 and 2,991.15

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Solution

The fourth proportional to 10,781.73, 16,170.17 and 2,991.15 is: 4,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.73 : 16,170.17 = 2,991.15 : x
  2. Step 2: Convert to fraction form
    10,781.73/16,170.17 = 2,991.15/x
  3. Step 3: Cross multiply
    10,781.73x = 16,170.17 × 2,991.15
  4. Step 4: Simplify right side
    10,781.73x = 48,367,389.04
  5. Step 5: Solve for x
    x = 48,367,389.04/10,781.73
  6. Step 6: Final answer
    x = 4,486.05

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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.