Home / 11,987.39-17,984.33-4,196.81

Finding the Fourth Proportional to 11,987.39, 17,984.33 and 4,196.81

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Solution

The fourth proportional to 11,987.39, 17,984.33 and 4,196.81 is: 6,296.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.39 : 17,984.33 = 4,196.81 : x
  2. Step 2: Convert to fraction form
    11,987.39/17,984.33 = 4,196.81/x
  3. Step 3: Cross multiply
    11,987.39x = 17,984.33 × 4,196.81
  4. Step 4: Simplify right side
    11,987.39x = 75,476,815.99
  5. Step 5: Solve for x
    x = 75,476,815.99/11,987.39
  6. Step 6: Final answer
    x = 6,296.35

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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.