Home / 7,989.26-11,983.77-3,603.62

Finding the Fourth Proportional to 7,989.26, 11,983.77 and 3,603.62

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Solution

The fourth proportional to 7,989.26, 11,983.77 and 3,603.62 is: 5,405.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.26 : 11,983.77 = 3,603.62 : x
  2. Step 2: Convert to fraction form
    7,989.26/11,983.77 = 3,603.62/x
  3. Step 3: Cross multiply
    7,989.26x = 11,983.77 × 3,603.62
  4. Step 4: Simplify right side
    7,989.26x = 43,184,983.21
  5. Step 5: Solve for x
    x = 43,184,983.21/7,989.26
  6. Step 6: Final answer
    x = 5,405.38

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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.