Home / 8,221.16-12,332.28-3,030.68

Finding the Fourth Proportional to 8,221.16, 12,332.28 and 3,030.68

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Solution

The fourth proportional to 8,221.16, 12,332.28 and 3,030.68 is: 4,546.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221.16 : 12,332.28 = 3,030.68 : x
  2. Step 2: Convert to fraction form
    8,221.16/12,332.28 = 3,030.68/x
  3. Step 3: Cross multiply
    8,221.16x = 12,332.28 × 3,030.68
  4. Step 4: Simplify right side
    8,221.16x = 37,375,194.35
  5. Step 5: Solve for x
    x = 37,375,194.35/8,221.16
  6. Step 6: Final answer
    x = 4,546.22

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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.