Home / 18,485.07-27,727.20-7,962.09

Finding the Fourth Proportional to 18,485.07, 27,727.20 and 7,962.09

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Solution

The fourth proportional to 18,485.07, 27,727.20 and 7,962.09 is: 11,942.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,485.07 : 27,727.20 = 7,962.09 : x
  2. Step 2: Convert to fraction form
    18,485.07/27,727.20 = 7,962.09/x
  3. Step 3: Cross multiply
    18,485.07x = 27,727.20 × 7,962.09
  4. Step 4: Simplify right side
    18,485.07x = 220,766,461.85
  5. Step 5: Solve for x
    x = 220,766,461.85/18,485.07
  6. Step 6: Final answer
    x = 11,942.96

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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.