Home / 6,861.28-10,296.96-5,305.12

Finding the Fourth Proportional to 6,861.28, 10,296.96 and 5,305.12

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Solution

The fourth proportional to 6,861.28, 10,296.96 and 5,305.12 is: 7,961.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.28 : 10,296.96 = 5,305.12 : x
  2. Step 2: Convert to fraction form
    6,861.28/10,296.96 = 5,305.12/x
  3. Step 3: Cross multiply
    6,861.28x = 10,296.96 × 5,305.12
  4. Step 4: Simplify right side
    6,861.28x = 54,626,608.44
  5. Step 5: Solve for x
    x = 54,626,608.44/6,861.28
  6. Step 6: Final answer
    x = 7,961.58

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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.