Home / 8,223.57-12,335.40-3,291.84

Finding the Fourth Proportional to 8,223.57, 12,335.40 and 3,291.84

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Solution

The fourth proportional to 8,223.57, 12,335.40 and 3,291.84 is: 4,937.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,223.57 : 12,335.40 = 3,291.84 : x
  2. Step 2: Convert to fraction form
    8,223.57/12,335.40 = 3,291.84/x
  3. Step 3: Cross multiply
    8,223.57x = 12,335.40 × 3,291.84
  4. Step 4: Simplify right side
    8,223.57x = 40,606,163.14
  5. Step 5: Solve for x
    x = 40,606,163.14/8,223.57
  6. Step 6: Final answer
    x = 4,937.78

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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.