Home / 8,171.97-11,273.81-6,396.45

Finding the Fourth Proportional to 8,171.97, 11,273.81 and 6,396.45

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Solution

The fourth proportional to 8,171.97, 11,273.81 and 6,396.45 is: 8,824.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.97 : 11,273.81 = 6,396.45 : x
  2. Step 2: Convert to fraction form
    8,171.97/11,273.81 = 6,396.45/x
  3. Step 3: Cross multiply
    8,171.97x = 11,273.81 × 6,396.45
  4. Step 4: Simplify right side
    8,171.97x = 72,112,361.97
  5. Step 5: Solve for x
    x = 72,112,361.97/8,171.97
  6. Step 6: Final answer
    x = 8,824.35

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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.