Home / 11,653.75-16,081.61-6,617.30

Finding the Fourth Proportional to 11,653.75, 16,081.61 and 6,617.30

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Solution

The fourth proportional to 11,653.75, 16,081.61 and 6,617.30 is: 9,131.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,653.75 : 16,081.61 = 6,617.30 : x
  2. Step 2: Convert to fraction form
    11,653.75/16,081.61 = 6,617.30/x
  3. Step 3: Cross multiply
    11,653.75x = 16,081.61 × 6,617.30
  4. Step 4: Simplify right side
    11,653.75x = 106,416,915.88
  5. Step 5: Solve for x
    x = 106,416,915.88/11,653.75
  6. Step 6: Final answer
    x = 9,131.56

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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.