Home / 11,989.24-17,986.59-3,669.90

Finding the Fourth Proportional to 11,989.24, 17,986.59 and 3,669.90

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Solution

The fourth proportional to 11,989.24, 17,986.59 and 3,669.90 is: 5,505.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.24 : 17,986.59 = 3,669.90 : x
  2. Step 2: Convert to fraction form
    11,989.24/17,986.59 = 3,669.90/x
  3. Step 3: Cross multiply
    11,989.24x = 17,986.59 × 3,669.90
  4. Step 4: Simplify right side
    11,989.24x = 66,008,986.64
  5. Step 5: Solve for x
    x = 66,008,986.64/11,989.24
  6. Step 6: Final answer
    x = 5,505.69

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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.