Home / 11,961.75-16,506.94-6,656.46

Finding the Fourth Proportional to 11,961.75, 16,506.94 and 6,656.46

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Solution

The fourth proportional to 11,961.75, 16,506.94 and 6,656.46 is: 9,185.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.75 : 16,506.94 = 6,656.46 : x
  2. Step 2: Convert to fraction form
    11,961.75/16,506.94 = 6,656.46/x
  3. Step 3: Cross multiply
    11,961.75x = 16,506.94 × 6,656.46
  4. Step 4: Simplify right side
    11,961.75x = 109,877,719.77
  5. Step 5: Solve for x
    x = 109,877,719.77/11,961.75
  6. Step 6: Final answer
    x = 9,185.75

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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.