Home / 12,205.22-18,309.06-3,440.22

Finding the Fourth Proportional to 12,205.22, 18,309.06 and 3,440.22

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Solution

The fourth proportional to 12,205.22, 18,309.06 and 3,440.22 is: 5,160.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,205.22 : 18,309.06 = 3,440.22 : x
  2. Step 2: Convert to fraction form
    12,205.22/18,309.06 = 3,440.22/x
  3. Step 3: Cross multiply
    12,205.22x = 18,309.06 × 3,440.22
  4. Step 4: Simplify right side
    12,205.22x = 62,987,194.39
  5. Step 5: Solve for x
    x = 62,987,194.39/12,205.22
  6. Step 6: Final answer
    x = 5,160.68

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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.