Home / 6,825.92-9,421.12-3,993.60

Finding the Fourth Proportional to 6,825.92, 9,421.12 and 3,993.60

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Solution

The fourth proportional to 6,825.92, 9,421.12 and 3,993.60 is: 5,511.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,825.92 : 9,421.12 = 3,993.60 : x
  2. Step 2: Convert to fraction form
    6,825.92/9,421.12 = 3,993.60/x
  3. Step 3: Cross multiply
    6,825.92x = 9,421.12 × 3,993.60
  4. Step 4: Simplify right side
    6,825.92x = 37,624,184.83
  5. Step 5: Solve for x
    x = 37,624,184.83/6,825.92
  6. Step 6: Final answer
    x = 5,511.96

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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.