Home / 8,112.81-12,163.99-3,182.95

Finding the Fourth Proportional to 8,112.81, 12,163.99 and 3,182.95

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Solution

The fourth proportional to 8,112.81, 12,163.99 and 3,182.95 is: 4,772.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.81 : 12,163.99 = 3,182.95 : x
  2. Step 2: Convert to fraction form
    8,112.81/12,163.99 = 3,182.95/x
  3. Step 3: Cross multiply
    8,112.81x = 12,163.99 × 3,182.95
  4. Step 4: Simplify right side
    8,112.81x = 38,717,379.22
  5. Step 5: Solve for x
    x = 38,717,379.22/8,112.81
  6. Step 6: Final answer
    x = 4,772.37

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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.