Home / 8,539.10-12,813.78-3,608.36

Finding the Fourth Proportional to 8,539.10, 12,813.78 and 3,608.36

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Solution

The fourth proportional to 8,539.10, 12,813.78 and 3,608.36 is: 5,414.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.10 : 12,813.78 = 3,608.36 : x
  2. Step 2: Convert to fraction form
    8,539.10/12,813.78 = 3,608.36/x
  3. Step 3: Cross multiply
    8,539.10x = 12,813.78 × 3,608.36
  4. Step 4: Simplify right side
    8,539.10x = 46,236,731.20
  5. Step 5: Solve for x
    x = 46,236,731.20/8,539.10
  6. Step 6: Final answer
    x = 5,414.71

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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.