Home / 12,149.96-18,205.77-8,847.86

Finding the Fourth Proportional to 12,149.96, 18,205.77 and 8,847.86

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Solution

The fourth proportional to 12,149.96, 18,205.77 and 8,847.86 is: 13,257.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.96 : 18,205.77 = 8,847.86 : x
  2. Step 2: Convert to fraction form
    12,149.96/18,205.77 = 8,847.86/x
  3. Step 3: Cross multiply
    12,149.96x = 18,205.77 × 8,847.86
  4. Step 4: Simplify right side
    12,149.96x = 161,082,104.15
  5. Step 5: Solve for x
    x = 161,082,104.15/12,149.96
  6. Step 6: Final answer
    x = 13,257.83

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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.