Home / 9,351.40-12,817.26-9,286.60

Finding the Fourth Proportional to 9,351.40, 12,817.26 and 9,286.60

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Solution

The fourth proportional to 9,351.40, 12,817.26 and 9,286.60 is: 12,728.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,351.40 : 12,817.26 = 9,286.60 : x
  2. Step 2: Convert to fraction form
    9,351.40/12,817.26 = 9,286.60/x
  3. Step 3: Cross multiply
    9,351.40x = 12,817.26 × 9,286.60
  4. Step 4: Simplify right side
    9,351.40x = 119,028,766.72
  5. Step 5: Solve for x
    x = 119,028,766.72/9,351.40
  6. Step 6: Final answer
    x = 12,728.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.