Home / 11,922.72-16,453.32-6,886.56

Finding the Fourth Proportional to 11,922.72, 16,453.32 and 6,886.56

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Solution

The fourth proportional to 11,922.72, 16,453.32 and 6,886.56 is: 9,503.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.72 : 16,453.32 = 6,886.56 : x
  2. Step 2: Convert to fraction form
    11,922.72/16,453.32 = 6,886.56/x
  3. Step 3: Cross multiply
    11,922.72x = 16,453.32 × 6,886.56
  4. Step 4: Simplify right side
    11,922.72x = 113,306,775.38
  5. Step 5: Solve for x
    x = 113,306,775.38/11,922.72
  6. Step 6: Final answer
    x = 9,503.43

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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.