Home / 13,738.36-18,951.96-8,694.08

Finding the Fourth Proportional to 13,738.36, 18,951.96 and 8,694.08

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Solution

The fourth proportional to 13,738.36, 18,951.96 and 8,694.08 is: 11,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.36 : 18,951.96 = 8,694.08 : x
  2. Step 2: Convert to fraction form
    13,738.36/18,951.96 = 8,694.08/x
  3. Step 3: Cross multiply
    13,738.36x = 18,951.96 × 8,694.08
  4. Step 4: Simplify right side
    13,738.36x = 164,769,856.40
  5. Step 5: Solve for x
    x = 164,769,856.40/13,738.36
  6. Step 6: Final answer
    x = 11,993.42

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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.