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Finding the Fourth Proportional to 11,255.74, 16,870.74 and 6,863.44

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Solution

The fourth proportional to 11,255.74, 16,870.74 and 6,863.44 is: 10,287.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.74 : 16,870.74 = 6,863.44 : x
  2. Step 2: Convert to fraction form
    11,255.74/16,870.74 = 6,863.44/x
  3. Step 3: Cross multiply
    11,255.74x = 16,870.74 × 6,863.44
  4. Step 4: Simplify right side
    11,255.74x = 115,791,311.75
  5. Step 5: Solve for x
    x = 115,791,311.75/11,255.74
  6. Step 6: Final answer
    x = 10,287.31

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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.