Home / 8,910.22-13,356.52-4,221.99

Finding the Fourth Proportional to 8,910.22, 13,356.52 and 4,221.99

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Solution

The fourth proportional to 8,910.22, 13,356.52 and 4,221.99 is: 6,328.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.22 : 13,356.52 = 4,221.99 : x
  2. Step 2: Convert to fraction form
    8,910.22/13,356.52 = 4,221.99/x
  3. Step 3: Cross multiply
    8,910.22x = 13,356.52 × 4,221.99
  4. Step 4: Simplify right side
    8,910.22x = 56,391,093.87
  5. Step 5: Solve for x
    x = 56,391,093.87/8,910.22
  6. Step 6: Final answer
    x = 6,328.81

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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.