Home / 8,112.26-12,169.59-2,564.35

Finding the Fourth Proportional to 8,112.26, 12,169.59 and 2,564.35

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Solution

The fourth proportional to 8,112.26, 12,169.59 and 2,564.35 is: 3,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.26 : 12,169.59 = 2,564.35 : x
  2. Step 2: Convert to fraction form
    8,112.26/12,169.59 = 2,564.35/x
  3. Step 3: Cross multiply
    8,112.26x = 12,169.59 × 2,564.35
  4. Step 4: Simplify right side
    8,112.26x = 31,207,057.69
  5. Step 5: Solve for x
    x = 31,207,057.69/8,112.26
  6. Step 6: Final answer
    x = 3,846.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.