Home / 8,816.92-12,169.39-5,667.64

Finding the Fourth Proportional to 8,816.92, 12,169.39 and 5,667.64

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Solution

The fourth proportional to 8,816.92, 12,169.39 and 5,667.64 is: 7,822.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.92 : 12,169.39 = 5,667.64 : x
  2. Step 2: Convert to fraction form
    8,816.92/12,169.39 = 5,667.64/x
  3. Step 3: Cross multiply
    8,816.92x = 12,169.39 × 5,667.64
  4. Step 4: Simplify right side
    8,816.92x = 68,971,721.54
  5. Step 5: Solve for x
    x = 68,971,721.54/8,816.92
  6. Step 6: Final answer
    x = 7,822.65

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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.