Home / 11,965.46-16,512.16-6,660.28

Finding the Fourth Proportional to 11,965.46, 16,512.16 and 6,660.28

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Solution

The fourth proportional to 11,965.46, 16,512.16 and 6,660.28 is: 9,191.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.46 : 16,512.16 = 6,660.28 : x
  2. Step 2: Convert to fraction form
    11,965.46/16,512.16 = 6,660.28/x
  3. Step 3: Cross multiply
    11,965.46x = 16,512.16 × 6,660.28
  4. Step 4: Simplify right side
    11,965.46x = 109,975,609.00
  5. Step 5: Solve for x
    x = 109,975,609.00/11,965.46
  6. Step 6: Final answer
    x = 9,191.09

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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.