Home / 11,966.10-16,512.77-6,660.80

Finding the Fourth Proportional to 11,966.10, 16,512.77 and 6,660.80

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Solution

The fourth proportional to 11,966.10, 16,512.77 and 6,660.80 is: 9,191.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,966.10 : 16,512.77 = 6,660.80 : x
  2. Step 2: Convert to fraction form
    11,966.10/16,512.77 = 6,660.80/x
  3. Step 3: Cross multiply
    11,966.10x = 16,512.77 × 6,660.80
  4. Step 4: Simplify right side
    11,966.10x = 109,988,316.35
  5. Step 5: Solve for x
    x = 109,988,316.35/11,966.10
  6. Step 6: Final answer
    x = 9,191.66

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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.