Home / 10,811.43-16,215.78-2,914.56

Finding the Fourth Proportional to 10,811.43, 16,215.78 and 2,914.56

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Solution

The fourth proportional to 10,811.43, 16,215.78 and 2,914.56 is: 4,371.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.43 : 16,215.78 = 2,914.56 : x
  2. Step 2: Convert to fraction form
    10,811.43/16,215.78 = 2,914.56/x
  3. Step 3: Cross multiply
    10,811.43x = 16,215.78 × 2,914.56
  4. Step 4: Simplify right side
    10,811.43x = 47,261,863.76
  5. Step 5: Solve for x
    x = 47,261,863.76/10,811.43
  6. Step 6: Final answer
    x = 4,371.47

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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.