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Finding the Fourth Proportional to 6,806.52, 10,187.90 and 3,515.12

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Solution

The fourth proportional to 6,806.52, 10,187.90 and 3,515.12 is: 5,261.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,806.52 : 10,187.90 = 3,515.12 : x
  2. Step 2: Convert to fraction form
    6,806.52/10,187.90 = 3,515.12/x
  3. Step 3: Cross multiply
    6,806.52x = 10,187.90 × 3,515.12
  4. Step 4: Simplify right side
    6,806.52x = 35,811,691.05
  5. Step 5: Solve for x
    x = 35,811,691.05/6,806.52
  6. Step 6: Final answer
    x = 5,261.38

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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.