Home / 8,107.68-11,189.28-4,963.68

Finding the Fourth Proportional to 8,107.68, 11,189.28 and 4,963.68

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Solution

The fourth proportional to 8,107.68, 11,189.28 and 4,963.68 is: 6,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107.68 : 11,189.28 = 4,963.68 : x
  2. Step 2: Convert to fraction form
    8,107.68/11,189.28 = 4,963.68/x
  3. Step 3: Cross multiply
    8,107.68x = 11,189.28 × 4,963.68
  4. Step 4: Simplify right side
    8,107.68x = 55,540,005.35
  5. Step 5: Solve for x
    x = 55,540,005.35/8,107.68
  6. Step 6: Final answer
    x = 6,850.30

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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.