Home / 8,106.16-12,161.30-2,262.78

Finding the Fourth Proportional to 8,106.16, 12,161.30 and 2,262.78

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Solution

The fourth proportional to 8,106.16, 12,161.30 and 2,262.78 is: 3,394.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.16 : 12,161.30 = 2,262.78 : x
  2. Step 2: Convert to fraction form
    8,106.16/12,161.30 = 2,262.78/x
  3. Step 3: Cross multiply
    8,106.16x = 12,161.30 × 2,262.78
  4. Step 4: Simplify right side
    8,106.16x = 27,518,346.41
  5. Step 5: Solve for x
    x = 27,518,346.41/8,106.16
  6. Step 6: Final answer
    x = 3,394.75

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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.