Home / 11,312.25-16,965.09-3,914.79

Finding the Fourth Proportional to 11,312.25, 16,965.09 and 3,914.79

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Solution

The fourth proportional to 11,312.25, 16,965.09 and 3,914.79 is: 5,871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.25 : 16,965.09 = 3,914.79 : x
  2. Step 2: Convert to fraction form
    11,312.25/16,965.09 = 3,914.79/x
  3. Step 3: Cross multiply
    11,312.25x = 16,965.09 × 3,914.79
  4. Step 4: Simplify right side
    11,312.25x = 66,414,764.68
  5. Step 5: Solve for x
    x = 66,414,764.68/11,312.25
  6. Step 6: Final answer
    x = 5,871.05

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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.