Home / 13,911.82-20,853.81-6,896.97

Finding the Fourth Proportional to 13,911.82, 20,853.81 and 6,896.97

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Solution

The fourth proportional to 13,911.82, 20,853.81 and 6,896.97 is: 10,338.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.82 : 20,853.81 = 6,896.97 : x
  2. Step 2: Convert to fraction form
    13,911.82/20,853.81 = 6,896.97/x
  3. Step 3: Cross multiply
    13,911.82x = 20,853.81 × 6,896.97
  4. Step 4: Simplify right side
    13,911.82x = 143,828,062.85
  5. Step 5: Solve for x
    x = 143,828,062.85/13,911.82
  6. Step 6: Final answer
    x = 10,338.55

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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.