Home / 6,618.20-9,134.15-3,966.44

Finding the Fourth Proportional to 6,618.20, 9,134.15 and 3,966.44

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Solution

The fourth proportional to 6,618.20, 9,134.15 and 3,966.44 is: 5,474.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.20 : 9,134.15 = 3,966.44 : x
  2. Step 2: Convert to fraction form
    6,618.20/9,134.15 = 3,966.44/x
  3. Step 3: Cross multiply
    6,618.20x = 9,134.15 × 3,966.44
  4. Step 4: Simplify right side
    6,618.20x = 36,229,992.42
  5. Step 5: Solve for x
    x = 36,229,992.42/6,618.20
  6. Step 6: Final answer
    x = 5,474.30

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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.