Home / 11,121.64-16,679.95-3,224.14

Finding the Fourth Proportional to 11,121.64, 16,679.95 and 3,224.14

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Solution

The fourth proportional to 11,121.64, 16,679.95 and 3,224.14 is: 4,835.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.64 : 16,679.95 = 3,224.14 : x
  2. Step 2: Convert to fraction form
    11,121.64/16,679.95 = 3,224.14/x
  3. Step 3: Cross multiply
    11,121.64x = 16,679.95 × 3,224.14
  4. Step 4: Simplify right side
    11,121.64x = 53,778,493.99
  5. Step 5: Solve for x
    x = 53,778,493.99/11,121.64
  6. Step 6: Final answer
    x = 4,835.48

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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.