Home / 12,611.38-18,911.19-3,844.42

Finding the Fourth Proportional to 12,611.38, 18,911.19 and 3,844.42

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Solution

The fourth proportional to 12,611.38, 18,911.19 and 3,844.42 is: 5,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611.38 : 18,911.19 = 3,844.42 : x
  2. Step 2: Convert to fraction form
    12,611.38/18,911.19 = 3,844.42/x
  3. Step 3: Cross multiply
    12,611.38x = 18,911.19 × 3,844.42
  4. Step 4: Simplify right side
    12,611.38x = 72,702,557.06
  5. Step 5: Solve for x
    x = 72,702,557.06/12,611.38
  6. Step 6: Final answer
    x = 5,764.84

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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.