Home / 12,611.32-18,919.74-3,846.02

Finding the Fourth Proportional to 12,611.32, 18,919.74 and 3,846.02

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Solution

The fourth proportional to 12,611.32, 18,919.74 and 3,846.02 is: 5,769.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611.32 : 18,919.74 = 3,846.02 : x
  2. Step 2: Convert to fraction form
    12,611.32/18,919.74 = 3,846.02/x
  3. Step 3: Cross multiply
    12,611.32x = 18,919.74 × 3,846.02
  4. Step 4: Simplify right side
    12,611.32x = 72,765,698.43
  5. Step 5: Solve for x
    x = 72,765,698.43/12,611.32
  6. Step 6: Final answer
    x = 5,769.87

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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.