Home / 11,980.09-17,971.44-4,083.40

Finding the Fourth Proportional to 11,980.09, 17,971.44 and 4,083.40

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Solution

The fourth proportional to 11,980.09, 17,971.44 and 4,083.40 is: 6,125.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,980.09 : 17,971.44 = 4,083.40 : x
  2. Step 2: Convert to fraction form
    11,980.09/17,971.44 = 4,083.40/x
  3. Step 3: Cross multiply
    11,980.09x = 17,971.44 × 4,083.40
  4. Step 4: Simplify right side
    11,980.09x = 73,384,578.10
  5. Step 5: Solve for x
    x = 73,384,578.10/11,980.09
  6. Step 6: Final answer
    x = 6,125.54

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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.