Home / 11,717.06-16,169.96-6,680.46

Finding the Fourth Proportional to 11,717.06, 16,169.96 and 6,680.46

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Solution

The fourth proportional to 11,717.06, 16,169.96 and 6,680.46 is: 9,219.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,717.06 : 16,169.96 = 6,680.46 : x
  2. Step 2: Convert to fraction form
    11,717.06/16,169.96 = 6,680.46/x
  3. Step 3: Cross multiply
    11,717.06x = 16,169.96 × 6,680.46
  4. Step 4: Simplify right side
    11,717.06x = 108,022,787.68
  5. Step 5: Solve for x
    x = 108,022,787.68/11,717.06
  6. Step 6: Final answer
    x = 9,219.28

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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.