Home / 13,621.14-18,791.73-8,584.02

Finding the Fourth Proportional to 13,621.14, 18,791.73 and 8,584.02

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Solution

The fourth proportional to 13,621.14, 18,791.73 and 8,584.02 is: 11,842.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.14 : 18,791.73 = 8,584.02 : x
  2. Step 2: Convert to fraction form
    13,621.14/18,791.73 = 8,584.02/x
  3. Step 3: Cross multiply
    13,621.14x = 18,791.73 × 8,584.02
  4. Step 4: Simplify right side
    13,621.14x = 161,308,586.15
  5. Step 5: Solve for x
    x = 161,308,586.15/13,621.14
  6. Step 6: Final answer
    x = 11,842.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.