Home / 8,170.97-11,272.43-6,395.45

Finding the Fourth Proportional to 8,170.97, 11,272.43 and 6,395.45

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Solution

The fourth proportional to 8,170.97, 11,272.43 and 6,395.45 is: 8,822.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.97 : 11,272.43 = 6,395.45 : x
  2. Step 2: Convert to fraction form
    8,170.97/11,272.43 = 6,395.45/x
  3. Step 3: Cross multiply
    8,170.97x = 11,272.43 × 6,395.45
  4. Step 4: Simplify right side
    8,170.97x = 72,092,222.07
  5. Step 5: Solve for x
    x = 72,092,222.07/8,170.97
  6. Step 6: Final answer
    x = 8,822.98

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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.