Home / 8,163.48-11,244.60-6,391.92

Finding the Fourth Proportional to 8,163.48, 11,244.60 and 6,391.92

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Solution

The fourth proportional to 8,163.48, 11,244.60 and 6,391.92 is: 8,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163.48 : 11,244.60 = 6,391.92 : x
  2. Step 2: Convert to fraction form
    8,163.48/11,244.60 = 6,391.92/x
  3. Step 3: Cross multiply
    8,163.48x = 11,244.60 × 6,391.92
  4. Step 4: Simplify right side
    8,163.48x = 71,874,583.63
  5. Step 5: Solve for x
    x = 71,874,583.63/8,163.48
  6. Step 6: Final answer
    x = 8,804.40

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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.