Home / 11,114.98-16,657.89-8,179.54

Finding the Fourth Proportional to 11,114.98, 16,657.89 and 8,179.54

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Solution

The fourth proportional to 11,114.98, 16,657.89 and 8,179.54 is: 12,258.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.98 : 16,657.89 = 8,179.54 : x
  2. Step 2: Convert to fraction form
    11,114.98/16,657.89 = 8,179.54/x
  3. Step 3: Cross multiply
    11,114.98x = 16,657.89 × 8,179.54
  4. Step 4: Simplify right side
    11,114.98x = 136,253,877.57
  5. Step 5: Solve for x
    x = 136,253,877.57/11,114.98
  6. Step 6: Final answer
    x = 12,258.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.