Home / 10,919.31-16,378.97-2,711.31

Finding the Fourth Proportional to 10,919.31, 16,378.97 and 2,711.31

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Solution

The fourth proportional to 10,919.31, 16,378.97 and 2,711.31 is: 4,066.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.31 : 16,378.97 = 2,711.31 : x
  2. Step 2: Convert to fraction form
    10,919.31/16,378.97 = 2,711.31/x
  3. Step 3: Cross multiply
    10,919.31x = 16,378.97 × 2,711.31
  4. Step 4: Simplify right side
    10,919.31x = 44,408,465.15
  5. Step 5: Solve for x
    x = 44,408,465.15/10,919.31
  6. Step 6: Final answer
    x = 4,066.97

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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.