Home / 11,917.64-16,447.08-6,882.80

Finding the Fourth Proportional to 11,917.64, 16,447.08 and 6,882.80

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Solution

The fourth proportional to 11,917.64, 16,447.08 and 6,882.80 is: 9,498.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.64 : 16,447.08 = 6,882.80 : x
  2. Step 2: Convert to fraction form
    11,917.64/16,447.08 = 6,882.80/x
  3. Step 3: Cross multiply
    11,917.64x = 16,447.08 × 6,882.80
  4. Step 4: Simplify right side
    11,917.64x = 113,201,962.22
  5. Step 5: Solve for x
    x = 113,201,962.22/11,917.64
  6. Step 6: Final answer
    x = 9,498.69

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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.