Home / 8,112.81-12,171.06-3,433.22

Finding the Fourth Proportional to 8,112.81, 12,171.06 and 3,433.22

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Solution

The fourth proportional to 8,112.81, 12,171.06 and 3,433.22 is: 5,150.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.81 : 12,171.06 = 3,433.22 : x
  2. Step 2: Convert to fraction form
    8,112.81/12,171.06 = 3,433.22/x
  3. Step 3: Cross multiply
    8,112.81x = 12,171.06 × 3,433.22
  4. Step 4: Simplify right side
    8,112.81x = 41,785,865.76
  5. Step 5: Solve for x
    x = 41,785,865.76/8,112.81
  6. Step 6: Final answer
    x = 5,150.60

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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.