Home / 12,206.76-18,309.37-3,892.74

Finding the Fourth Proportional to 12,206.76, 18,309.37 and 3,892.74

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Solution

The fourth proportional to 12,206.76, 18,309.37 and 3,892.74 is: 5,838.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.76 : 18,309.37 = 3,892.74 : x
  2. Step 2: Convert to fraction form
    12,206.76/18,309.37 = 3,892.74/x
  3. Step 3: Cross multiply
    12,206.76x = 18,309.37 × 3,892.74
  4. Step 4: Simplify right side
    12,206.76x = 71,273,616.97
  5. Step 5: Solve for x
    x = 71,273,616.97/12,206.76
  6. Step 6: Final answer
    x = 5,838.86

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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.