Home / 19,716.60-29,541.46-11,909

Finding the Fourth Proportional to 19,716.60, 29,541.46 and 11,909

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Solution

The fourth proportional to 19,716.60, 29,541.46 and 11,909 is: 17,843.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,716.60 : 29,541.46 = 11,909 : x
  2. Step 2: Convert to fraction form
    19,716.60/29,541.46 = 11,909/x
  3. Step 3: Cross multiply
    19,716.60x = 29,541.46 × 11,909
  4. Step 4: Simplify right side
    19,716.60x = 351,809,247.14
  5. Step 5: Solve for x
    x = 351,809,247.14/19,716.60
  6. Step 6: Final answer
    x = 17,843.30

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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.