Home / 8,163.36-11,268.72-6,910.92

Finding the Fourth Proportional to 8,163.36, 11,268.72 and 6,910.92

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Solution

The fourth proportional to 8,163.36, 11,268.72 and 6,910.92 is: 9,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163.36 : 11,268.72 = 6,910.92 : x
  2. Step 2: Convert to fraction form
    8,163.36/11,268.72 = 6,910.92/x
  3. Step 3: Cross multiply
    8,163.36x = 11,268.72 × 6,910.92
  4. Step 4: Simplify right side
    8,163.36x = 77,877,222.42
  5. Step 5: Solve for x
    x = 77,877,222.42/8,163.36
  6. Step 6: Final answer
    x = 9,539.85

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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.