Home / 18,588.49-25,645.86-11,878.04

Finding the Fourth Proportional to 18,588.49, 25,645.86 and 11,878.04

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Solution

The fourth proportional to 18,588.49, 25,645.86 and 11,878.04 is: 16,387.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.49 : 25,645.86 = 11,878.04 : x
  2. Step 2: Convert to fraction form
    18,588.49/25,645.86 = 11,878.04/x
  3. Step 3: Cross multiply
    18,588.49x = 25,645.86 × 11,878.04
  4. Step 4: Simplify right side
    18,588.49x = 304,622,550.91
  5. Step 5: Solve for x
    x = 304,622,550.91/18,588.49
  6. Step 6: Final answer
    x = 16,387.70

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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.