Home / 7,217.96-9,960.68-4,074.12

Finding the Fourth Proportional to 7,217.96, 9,960.68 and 4,074.12

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Solution

The fourth proportional to 7,217.96, 9,960.68 and 4,074.12 is: 5,622.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.96 : 9,960.68 = 4,074.12 : x
  2. Step 2: Convert to fraction form
    7,217.96/9,960.68 = 4,074.12/x
  3. Step 3: Cross multiply
    7,217.96x = 9,960.68 × 4,074.12
  4. Step 4: Simplify right side
    7,217.96x = 40,581,005.60
  5. Step 5: Solve for x
    x = 40,581,005.60/7,217.96
  6. Step 6: Final answer
    x = 5,622.23

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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.