Home / 11,806.14-16,278.98-8,816.94

Finding the Fourth Proportional to 11,806.14, 16,278.98 and 8,816.94

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Solution

The fourth proportional to 11,806.14, 16,278.98 and 8,816.94 is: 12,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,806.14 : 16,278.98 = 8,816.94 : x
  2. Step 2: Convert to fraction form
    11,806.14/16,278.98 = 8,816.94/x
  3. Step 3: Cross multiply
    11,806.14x = 16,278.98 × 8,816.94
  4. Step 4: Simplify right side
    11,806.14x = 143,530,745.84
  5. Step 5: Solve for x
    x = 143,530,745.84/11,806.14
  6. Step 6: Final answer
    x = 12,157.30

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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.