Home / 12,540.88-18,806.19-6,696.46

Finding the Fourth Proportional to 12,540.88, 18,806.19 and 6,696.46

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Solution

The fourth proportional to 12,540.88, 18,806.19 and 6,696.46 is: 10,041.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.88 : 18,806.19 = 6,696.46 : x
  2. Step 2: Convert to fraction form
    12,540.88/18,806.19 = 6,696.46/x
  3. Step 3: Cross multiply
    12,540.88x = 18,806.19 × 6,696.46
  4. Step 4: Simplify right side
    12,540.88x = 125,934,899.09
  5. Step 5: Solve for x
    x = 125,934,899.09/12,540.88
  6. Step 6: Final answer
    x = 10,041.95

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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.