Home / 13,087.92-18,067.32-8,611.88

Finding the Fourth Proportional to 13,087.92, 18,067.32 and 8,611.88

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Solution

The fourth proportional to 13,087.92, 18,067.32 and 8,611.88 is: 11,888.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.92 : 18,067.32 = 8,611.88 : x
  2. Step 2: Convert to fraction form
    13,087.92/18,067.32 = 8,611.88/x
  3. Step 3: Cross multiply
    13,087.92x = 18,067.32 × 8,611.88
  4. Step 4: Simplify right side
    13,087.92x = 155,593,591.76
  5. Step 5: Solve for x
    x = 155,593,591.76/13,087.92
  6. Step 6: Final answer
    x = 11,888.34

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Similar ratio
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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.