Home / 8,112.66-12,162.03-3,118.62

Finding the Fourth Proportional to 8,112.66, 12,162.03 and 3,118.62

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Solution

The fourth proportional to 8,112.66, 12,162.03 and 3,118.62 is: 4,675.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.66 : 12,162.03 = 3,118.62 : x
  2. Step 2: Convert to fraction form
    8,112.66/12,162.03 = 3,118.62/x
  3. Step 3: Cross multiply
    8,112.66x = 12,162.03 × 3,118.62
  4. Step 4: Simplify right side
    8,112.66x = 37,928,750.00
  5. Step 5: Solve for x
    x = 37,928,750.00/8,112.66
  6. Step 6: Final answer
    x = 4,675.25

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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.