Home / 8,102.43-11,185.29-6,306.39

Finding the Fourth Proportional to 8,102.43, 11,185.29 and 6,306.39

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Solution

The fourth proportional to 8,102.43, 11,185.29 and 6,306.39 is: 8,705.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.43 : 11,185.29 = 6,306.39 : x
  2. Step 2: Convert to fraction form
    8,102.43/11,185.29 = 6,306.39/x
  3. Step 3: Cross multiply
    8,102.43x = 11,185.29 × 6,306.39
  4. Step 4: Simplify right side
    8,102.43x = 70,538,801.00
  5. Step 5: Solve for x
    x = 70,538,801.00/8,102.43
  6. Step 6: Final answer
    x = 8,705.88

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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.