Home / 11,107.16-16,661.79-4,087.31

Finding the Fourth Proportional to 11,107.16, 16,661.79 and 4,087.31

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Solution

The fourth proportional to 11,107.16, 16,661.79 and 4,087.31 is: 6,131.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.16 : 16,661.79 = 4,087.31 : x
  2. Step 2: Convert to fraction form
    11,107.16/16,661.79 = 4,087.31/x
  3. Step 3: Cross multiply
    11,107.16x = 16,661.79 × 4,087.31
  4. Step 4: Simplify right side
    11,107.16x = 68,101,905.55
  5. Step 5: Solve for x
    x = 68,101,905.55/11,107.16
  6. Step 6: Final answer
    x = 6,131.35

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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.