Home / 11,241.32-16,861.57-2,921.81

Finding the Fourth Proportional to 11,241.32, 16,861.57 and 2,921.81

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Solution

The fourth proportional to 11,241.32, 16,861.57 and 2,921.81 is: 4,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,241.32 : 16,861.57 = 2,921.81 : x
  2. Step 2: Convert to fraction form
    11,241.32/16,861.57 = 2,921.81/x
  3. Step 3: Cross multiply
    11,241.32x = 16,861.57 × 2,921.81
  4. Step 4: Simplify right side
    11,241.32x = 49,266,212.23
  5. Step 5: Solve for x
    x = 49,266,212.23/11,241.32
  6. Step 6: Final answer
    x = 4,382.60

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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.