Home / 12,273.55-18,418.40-6,730.80

Finding the Fourth Proportional to 12,273.55, 18,418.40 and 6,730.80

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Solution

The fourth proportional to 12,273.55, 18,418.40 and 6,730.80 is: 10,100.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,273.55 : 18,418.40 = 6,730.80 : x
  2. Step 2: Convert to fraction form
    12,273.55/18,418.40 = 6,730.80/x
  3. Step 3: Cross multiply
    12,273.55x = 18,418.40 × 6,730.80
  4. Step 4: Simplify right side
    12,273.55x = 123,970,440.97
  5. Step 5: Solve for x
    x = 123,970,440.97/12,273.55
  6. Step 6: Final answer
    x = 10,100.62

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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.