Home / 7,861.08-11,781.21-4,294.05

Finding the Fourth Proportional to 7,861.08, 11,781.21 and 4,294.05

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Solution

The fourth proportional to 7,861.08, 11,781.21 and 4,294.05 is: 6,435.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.08 : 11,781.21 = 4,294.05 : x
  2. Step 2: Convert to fraction form
    7,861.08/11,781.21 = 4,294.05/x
  3. Step 3: Cross multiply
    7,861.08x = 11,781.21 × 4,294.05
  4. Step 4: Simplify right side
    7,861.08x = 50,589,104.80
  5. Step 5: Solve for x
    x = 50,589,104.80/7,861.08
  6. Step 6: Final answer
    x = 6,435.39

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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.