Home / 10,613.10-15,919.85-3,217.80

Finding the Fourth Proportional to 10,613.10, 15,919.85 and 3,217.80

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Solution

The fourth proportional to 10,613.10, 15,919.85 and 3,217.80 is: 4,826.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.10 : 15,919.85 = 3,217.80 : x
  2. Step 2: Convert to fraction form
    10,613.10/15,919.85 = 3,217.80/x
  3. Step 3: Cross multiply
    10,613.10x = 15,919.85 × 3,217.80
  4. Step 4: Simplify right side
    10,613.10x = 51,226,893.33
  5. Step 5: Solve for x
    x = 51,226,893.33/10,613.10
  6. Step 6: Final answer
    x = 4,826.76

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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.