Home / 11,966.22-16,512.75-6,660.09

Finding the Fourth Proportional to 11,966.22, 16,512.75 and 6,660.09

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Solution

The fourth proportional to 11,966.22, 16,512.75 and 6,660.09 is: 9,190.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,966.22 : 16,512.75 = 6,660.09 : x
  2. Step 2: Convert to fraction form
    11,966.22/16,512.75 = 6,660.09/x
  3. Step 3: Cross multiply
    11,966.22x = 16,512.75 × 6,660.09
  4. Step 4: Simplify right side
    11,966.22x = 109,976,401.15
  5. Step 5: Solve for x
    x = 109,976,401.15/11,966.22
  6. Step 6: Final answer
    x = 9,190.57

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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.