Home / 8,178.62-11,292.77-5,945.83

Finding the Fourth Proportional to 8,178.62, 11,292.77 and 5,945.83

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Solution

The fourth proportional to 8,178.62, 11,292.77 and 5,945.83 is: 8,209.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.62 : 11,292.77 = 5,945.83 : x
  2. Step 2: Convert to fraction form
    8,178.62/11,292.77 = 5,945.83/x
  3. Step 3: Cross multiply
    8,178.62x = 11,292.77 × 5,945.83
  4. Step 4: Simplify right side
    8,178.62x = 67,144,843.84
  5. Step 5: Solve for x
    x = 67,144,843.84/8,178.62
  6. Step 6: Final answer
    x = 8,209.81

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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.