Home / 12,884.38-17,647.23-12,127.84

Finding the Fourth Proportional to 12,884.38, 17,647.23 and 12,127.84

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Solution

The fourth proportional to 12,884.38, 17,647.23 and 12,127.84 is: 16,611.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884.38 : 17,647.23 = 12,127.84 : x
  2. Step 2: Convert to fraction form
    12,884.38/17,647.23 = 12,127.84/x
  3. Step 3: Cross multiply
    12,884.38x = 17,647.23 × 12,127.84
  4. Step 4: Simplify right side
    12,884.38x = 214,022,781.88
  5. Step 5: Solve for x
    x = 214,022,781.88/12,884.38
  6. Step 6: Final answer
    x = 16,611.03

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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.