Home / 10,881.28-16,324.32-3,955.78

Finding the Fourth Proportional to 10,881.28, 16,324.32 and 3,955.78

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Solution

The fourth proportional to 10,881.28, 16,324.32 and 3,955.78 is: 5,934.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.28 : 16,324.32 = 3,955.78 : x
  2. Step 2: Convert to fraction form
    10,881.28/16,324.32 = 3,955.78/x
  3. Step 3: Cross multiply
    10,881.28x = 16,324.32 × 3,955.78
  4. Step 4: Simplify right side
    10,881.28x = 64,575,418.57
  5. Step 5: Solve for x
    x = 64,575,418.57/10,881.28
  6. Step 6: Final answer
    x = 5,934.54

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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.