Home / 11,918.07-16,447.28-6,540.75

Finding the Fourth Proportional to 11,918.07, 16,447.28 and 6,540.75

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Solution

The fourth proportional to 11,918.07, 16,447.28 and 6,540.75 is: 9,026.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.07 : 16,447.28 = 6,540.75 : x
  2. Step 2: Convert to fraction form
    11,918.07/16,447.28 = 6,540.75/x
  3. Step 3: Cross multiply
    11,918.07x = 16,447.28 × 6,540.75
  4. Step 4: Simplify right side
    11,918.07x = 107,577,546.66
  5. Step 5: Solve for x
    x = 107,577,546.66/11,918.07
  6. Step 6: Final answer
    x = 9,026.42

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1.5x scale

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.