Home / 11,107.84-16,661.64-3,316.72

Finding the Fourth Proportional to 11,107.84, 16,661.64 and 3,316.72

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Solution

The fourth proportional to 11,107.84, 16,661.64 and 3,316.72 is: 4,975.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.84 : 16,661.64 = 3,316.72 : x
  2. Step 2: Convert to fraction form
    11,107.84/16,661.64 = 3,316.72/x
  3. Step 3: Cross multiply
    11,107.84x = 16,661.64 × 3,316.72
  4. Step 4: Simplify right side
    11,107.84x = 55,261,994.62
  5. Step 5: Solve for x
    x = 55,261,994.62/11,107.84
  6. Step 6: Final answer
    x = 4,975.04

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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.