Home / 12,272.27-16,935.35-7,236.80

Finding the Fourth Proportional to 12,272.27, 16,935.35 and 7,236.80

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Solution

The fourth proportional to 12,272.27, 16,935.35 and 7,236.80 is: 9,986.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.27 : 16,935.35 = 7,236.80 : x
  2. Step 2: Convert to fraction form
    12,272.27/16,935.35 = 7,236.80/x
  3. Step 3: Cross multiply
    12,272.27x = 16,935.35 × 7,236.80
  4. Step 4: Simplify right side
    12,272.27x = 122,557,740.88
  5. Step 5: Solve for x
    x = 122,557,740.88/12,272.27
  6. Step 6: Final answer
    x = 9,986.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.