Home / 11,705.80-17,558.66-3,914.60

Finding the Fourth Proportional to 11,705.80, 17,558.66 and 3,914.60

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Solution

The fourth proportional to 11,705.80, 17,558.66 and 3,914.60 is: 5,871.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,705.80 : 17,558.66 = 3,914.60 : x
  2. Step 2: Convert to fraction form
    11,705.80/17,558.66 = 3,914.60/x
  3. Step 3: Cross multiply
    11,705.80x = 17,558.66 × 3,914.60
  4. Step 4: Simplify right side
    11,705.80x = 68,735,130.44
  5. Step 5: Solve for x
    x = 68,735,130.44/11,705.80
  6. Step 6: Final answer
    x = 5,871.89

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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.