Home / 7,821.25-10,791.64-4,635.54

Finding the Fourth Proportional to 7,821.25, 10,791.64 and 4,635.54

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Solution

The fourth proportional to 7,821.25, 10,791.64 and 4,635.54 is: 6,396.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.25 : 10,791.64 = 4,635.54 : x
  2. Step 2: Convert to fraction form
    7,821.25/10,791.64 = 4,635.54/x
  3. Step 3: Cross multiply
    7,821.25x = 10,791.64 × 4,635.54
  4. Step 4: Simplify right side
    7,821.25x = 50,025,078.89
  5. Step 5: Solve for x
    x = 50,025,078.89/7,821.25
  6. Step 6: Final answer
    x = 6,396.05

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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.