Home / 11,618.19-17,425.79-3,720.04

Finding the Fourth Proportional to 11,618.19, 17,425.79 and 3,720.04

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Solution

The fourth proportional to 11,618.19, 17,425.79 and 3,720.04 is: 5,579.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,618.19 : 17,425.79 = 3,720.04 : x
  2. Step 2: Convert to fraction form
    11,618.19/17,425.79 = 3,720.04/x
  3. Step 3: Cross multiply
    11,618.19x = 17,425.79 × 3,720.04
  4. Step 4: Simplify right side
    11,618.19x = 64,824,587.62
  5. Step 5: Solve for x
    x = 64,824,587.62/11,618.19
  6. Step 6: Final answer
    x = 5,579.58

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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.