Home / 10,216.85-15,324.97-2,821.76

Finding the Fourth Proportional to 10,216.85, 15,324.97 and 2,821.76

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Solution

The fourth proportional to 10,216.85, 15,324.97 and 2,821.76 is: 4,232.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,216.85 : 15,324.97 = 2,821.76 : x
  2. Step 2: Convert to fraction form
    10,216.85/15,324.97 = 2,821.76/x
  3. Step 3: Cross multiply
    10,216.85x = 15,324.97 × 2,821.76
  4. Step 4: Simplify right side
    10,216.85x = 43,243,387.35
  5. Step 5: Solve for x
    x = 43,243,387.35/10,216.85
  6. Step 6: Final answer
    x = 4,232.56

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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.