Home / 7,968.11-11,949.73-6,404.40

Finding the Fourth Proportional to 7,968.11, 11,949.73 and 6,404.40

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Solution

The fourth proportional to 7,968.11, 11,949.73 and 6,404.40 is: 9,604.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968.11 : 11,949.73 = 6,404.40 : x
  2. Step 2: Convert to fraction form
    7,968.11/11,949.73 = 6,404.40/x
  3. Step 3: Cross multiply
    7,968.11x = 11,949.73 × 6,404.40
  4. Step 4: Simplify right side
    7,968.11x = 76,530,834.80
  5. Step 5: Solve for x
    x = 76,530,834.80/7,968.11
  6. Step 6: Final answer
    x = 9,604.65

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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.