Home / 18,696.19-25,799.83-11,142.35

Finding the Fourth Proportional to 18,696.19, 25,799.83 and 11,142.35

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Solution

The fourth proportional to 18,696.19, 25,799.83 and 11,142.35 is: 15,375.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696.19 : 25,799.83 = 11,142.35 : x
  2. Step 2: Convert to fraction form
    18,696.19/25,799.83 = 11,142.35/x
  3. Step 3: Cross multiply
    18,696.19x = 25,799.83 × 11,142.35
  4. Step 4: Simplify right side
    18,696.19x = 287,470,578.95
  5. Step 5: Solve for x
    x = 287,470,578.95/18,696.19
  6. Step 6: Final answer
    x = 15,375.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.