Home / 11,146.20-16,724.70-8,512.80

Finding the Fourth Proportional to 11,146.20, 16,724.70 and 8,512.80

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Solution

The fourth proportional to 11,146.20, 16,724.70 and 8,512.80 is: 12,773.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.20 : 16,724.70 = 8,512.80 : x
  2. Step 2: Convert to fraction form
    11,146.20/16,724.70 = 8,512.80/x
  3. Step 3: Cross multiply
    11,146.20x = 16,724.70 × 8,512.80
  4. Step 4: Simplify right side
    11,146.20x = 142,374,026.16
  5. Step 5: Solve for x
    x = 142,374,026.16/11,146.20
  6. Step 6: Final answer
    x = 12,773.32

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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.