Home / 10,991.05-16,486.34-2,671.11

Finding the Fourth Proportional to 10,991.05, 16,486.34 and 2,671.11

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Solution

The fourth proportional to 10,991.05, 16,486.34 and 2,671.11 is: 4,006.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.05 : 16,486.34 = 2,671.11 : x
  2. Step 2: Convert to fraction form
    10,991.05/16,486.34 = 2,671.11/x
  3. Step 3: Cross multiply
    10,991.05x = 16,486.34 × 2,671.11
  4. Step 4: Simplify right side
    10,991.05x = 44,036,814.28
  5. Step 5: Solve for x
    x = 44,036,814.28/10,991.05
  6. Step 6: Final answer
    x = 4,006.61

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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.