Home / 10,640.88-15,962.44-4,072.60

Finding the Fourth Proportional to 10,640.88, 15,962.44 and 4,072.60

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Solution

The fourth proportional to 10,640.88, 15,962.44 and 4,072.60 is: 6,109.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.88 : 15,962.44 = 4,072.60 : x
  2. Step 2: Convert to fraction form
    10,640.88/15,962.44 = 4,072.60/x
  3. Step 3: Cross multiply
    10,640.88x = 15,962.44 × 4,072.60
  4. Step 4: Simplify right side
    10,640.88x = 65,008,633.14
  5. Step 5: Solve for x
    x = 65,008,633.14/10,640.88
  6. Step 6: Final answer
    x = 6,109.33

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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.