Home / 13,126.28-19,696.97-6,891.98

Finding the Fourth Proportional to 13,126.28, 19,696.97 and 6,891.98

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Solution

The fourth proportional to 13,126.28, 19,696.97 and 6,891.98 is: 10,341.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.28 : 19,696.97 = 6,891.98 : x
  2. Step 2: Convert to fraction form
    13,126.28/19,696.97 = 6,891.98/x
  3. Step 3: Cross multiply
    13,126.28x = 19,696.97 × 6,891.98
  4. Step 4: Simplify right side
    13,126.28x = 135,751,042.05
  5. Step 5: Solve for x
    x = 135,751,042.05/13,126.28
  6. Step 6: Final answer
    x = 10,341.93

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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.