Home / 11,964.78-16,512.05-6,659.48

Finding the Fourth Proportional to 11,964.78, 16,512.05 and 6,659.48

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Solution

The fourth proportional to 11,964.78, 16,512.05 and 6,659.48 is: 9,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,964.78 : 16,512.05 = 6,659.48 : x
  2. Step 2: Convert to fraction form
    11,964.78/16,512.05 = 6,659.48/x
  3. Step 3: Cross multiply
    11,964.78x = 16,512.05 × 6,659.48
  4. Step 4: Simplify right side
    11,964.78x = 109,961,724.66
  5. Step 5: Solve for x
    x = 109,961,724.66/11,964.78
  6. Step 6: Final answer
    x = 9,190.45

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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.