Home / 10,718.19-16,078.04-3,321.66

Finding the Fourth Proportional to 10,718.19, 16,078.04 and 3,321.66

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Solution

The fourth proportional to 10,718.19, 16,078.04 and 3,321.66 is: 4,982.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,718.19 : 16,078.04 = 3,321.66 : x
  2. Step 2: Convert to fraction form
    10,718.19/16,078.04 = 3,321.66/x
  3. Step 3: Cross multiply
    10,718.19x = 16,078.04 × 3,321.66
  4. Step 4: Simplify right side
    10,718.19x = 53,405,765.74
  5. Step 5: Solve for x
    x = 53,405,765.74/10,718.19
  6. Step 6: Final answer
    x = 4,982.72

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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.