Home / 6,845.87-9,447.30-3,861.70

Finding the Fourth Proportional to 6,845.87, 9,447.30 and 3,861.70

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Solution

The fourth proportional to 6,845.87, 9,447.30 and 3,861.70 is: 5,329.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,845.87 : 9,447.30 = 3,861.70 : x
  2. Step 2: Convert to fraction form
    6,845.87/9,447.30 = 3,861.70/x
  3. Step 3: Cross multiply
    6,845.87x = 9,447.30 × 3,861.70
  4. Step 4: Simplify right side
    6,845.87x = 36,482,614.79
  5. Step 5: Solve for x
    x = 36,482,614.79/6,845.87
  6. Step 6: Final answer
    x = 5,329.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.