Home / 10,613.52-15,919.53-3,218.04

Finding the Fourth Proportional to 10,613.52, 15,919.53 and 3,218.04

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Solution

The fourth proportional to 10,613.52, 15,919.53 and 3,218.04 is: 4,826.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.52 : 15,919.53 = 3,218.04 : x
  2. Step 2: Convert to fraction form
    10,613.52/15,919.53 = 3,218.04/x
  3. Step 3: Cross multiply
    10,613.52x = 15,919.53 × 3,218.04
  4. Step 4: Simplify right side
    10,613.52x = 51,229,684.32
  5. Step 5: Solve for x
    x = 51,229,684.32/10,613.52
  6. Step 6: Final answer
    x = 4,826.83

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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.