Home / 9,236.80-13,855.20-7,924.60

Finding the Fourth Proportional to 9,236.80, 13,855.20 and 7,924.60

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Solution

The fourth proportional to 9,236.80, 13,855.20 and 7,924.60 is: 11,886.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,236.80 : 13,855.20 = 7,924.60 : x
  2. Step 2: Convert to fraction form
    9,236.80/13,855.20 = 7,924.60/x
  3. Step 3: Cross multiply
    9,236.80x = 13,855.20 × 7,924.60
  4. Step 4: Simplify right side
    9,236.80x = 109,796,917.92
  5. Step 5: Solve for x
    x = 109,796,917.92/9,236.80
  6. Step 6: Final answer
    x = 11,886.90

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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.