Home / 11,918.75-17,883.18-5,992.51

Finding the Fourth Proportional to 11,918.75, 17,883.18 and 5,992.51

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Solution

The fourth proportional to 11,918.75, 17,883.18 and 5,992.51 is: 8,991.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.75 : 17,883.18 = 5,992.51 : x
  2. Step 2: Convert to fraction form
    11,918.75/17,883.18 = 5,992.51/x
  3. Step 3: Cross multiply
    11,918.75x = 17,883.18 × 5,992.51
  4. Step 4: Simplify right side
    11,918.75x = 107,165,073.51
  5. Step 5: Solve for x
    x = 107,165,073.51/11,918.75
  6. Step 6: Final answer
    x = 8,991.31

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1.5x scale

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.