Home / 6,620.99-9,135.96-3,967.73

Finding the Fourth Proportional to 6,620.99, 9,135.96 and 3,967.73

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Solution

The fourth proportional to 6,620.99, 9,135.96 and 3,967.73 is: 5,474.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.99 : 9,135.96 = 3,967.73 : x
  2. Step 2: Convert to fraction form
    6,620.99/9,135.96 = 3,967.73/x
  3. Step 3: Cross multiply
    6,620.99x = 9,135.96 × 3,967.73
  4. Step 4: Simplify right side
    6,620.99x = 36,249,081.14
  5. Step 5: Solve for x
    x = 36,249,081.14/6,620.99
  6. Step 6: Final answer
    x = 5,474.87

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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.