Home / 8,155.69-12,233.99-2,312.75

Finding the Fourth Proportional to 8,155.69, 12,233.99 and 2,312.75

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Solution

The fourth proportional to 8,155.69, 12,233.99 and 2,312.75 is: 3,469.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.69 : 12,233.99 = 2,312.75 : x
  2. Step 2: Convert to fraction form
    8,155.69/12,233.99 = 2,312.75/x
  3. Step 3: Cross multiply
    8,155.69x = 12,233.99 × 2,312.75
  4. Step 4: Simplify right side
    8,155.69x = 28,294,183.73
  5. Step 5: Solve for x
    x = 28,294,183.73/8,155.69
  6. Step 6: Final answer
    x = 3,469.26

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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.