Home / 8,100.79-11,179.61-6,107.83

Finding the Fourth Proportional to 8,100.79, 11,179.61 and 6,107.83

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Solution

The fourth proportional to 8,100.79, 11,179.61 and 6,107.83 is: 8,429.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.79 : 11,179.61 = 6,107.83 : x
  2. Step 2: Convert to fraction form
    8,100.79/11,179.61 = 6,107.83/x
  3. Step 3: Cross multiply
    8,100.79x = 11,179.61 × 6,107.83
  4. Step 4: Simplify right side
    8,100.79x = 68,283,157.35
  5. Step 5: Solve for x
    x = 68,283,157.35/8,100.79
  6. Step 6: Final answer
    x = 8,429.20

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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.