Home / 11,621.76-16,038.04-6,316.56

Finding the Fourth Proportional to 11,621.76, 16,038.04 and 6,316.56

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Solution

The fourth proportional to 11,621.76, 16,038.04 and 6,316.56 is: 8,716.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.76 : 16,038.04 = 6,316.56 : x
  2. Step 2: Convert to fraction form
    11,621.76/16,038.04 = 6,316.56/x
  3. Step 3: Cross multiply
    11,621.76x = 16,038.04 × 6,316.56
  4. Step 4: Simplify right side
    11,621.76x = 101,305,241.94
  5. Step 5: Solve for x
    x = 101,305,241.94/11,621.76
  6. Step 6: Final answer
    x = 8,716.86

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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.