Home / 6,513.20-9,777.39-3,399.15

Finding the Fourth Proportional to 6,513.20, 9,777.39 and 3,399.15

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Solution

The fourth proportional to 6,513.20, 9,777.39 and 3,399.15 is: 5,102.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.20 : 9,777.39 = 3,399.15 : x
  2. Step 2: Convert to fraction form
    6,513.20/9,777.39 = 3,399.15/x
  3. Step 3: Cross multiply
    6,513.20x = 9,777.39 × 3,399.15
  4. Step 4: Simplify right side
    6,513.20x = 33,234,815.22
  5. Step 5: Solve for x
    x = 33,234,815.22/6,513.20
  6. Step 6: Final answer
    x = 5,102.69

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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.