Home / 8,519.72-12,779.57-3,324.38

Finding the Fourth Proportional to 8,519.72, 12,779.57 and 3,324.38

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Solution

The fourth proportional to 8,519.72, 12,779.57 and 3,324.38 is: 4,986.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.72 : 12,779.57 = 3,324.38 : x
  2. Step 2: Convert to fraction form
    8,519.72/12,779.57 = 3,324.38/x
  3. Step 3: Cross multiply
    8,519.72x = 12,779.57 × 3,324.38
  4. Step 4: Simplify right side
    8,519.72x = 42,484,091.33
  5. Step 5: Solve for x
    x = 42,484,091.33/8,519.72
  6. Step 6: Final answer
    x = 4,986.56

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1.5x scale

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.