Home / 18,781.48-25,918.83-11,612.44

Finding the Fourth Proportional to 18,781.48, 25,918.83 and 11,612.44

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Solution

The fourth proportional to 18,781.48, 25,918.83 and 11,612.44 is: 16,025.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781.48 : 25,918.83 = 11,612.44 : x
  2. Step 2: Convert to fraction form
    18,781.48/25,918.83 = 11,612.44/x
  3. Step 3: Cross multiply
    18,781.48x = 25,918.83 × 11,612.44
  4. Step 4: Simplify right side
    18,781.48x = 300,980,858.25
  5. Step 5: Solve for x
    x = 300,980,858.25/18,781.48
  6. Step 6: Final answer
    x = 16,025.41

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1.5x scale

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.