Home / 12,634.86-18,953.19-3,868.64

Finding the Fourth Proportional to 12,634.86, 18,953.19 and 3,868.64

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Solution

The fourth proportional to 12,634.86, 18,953.19 and 3,868.64 is: 5,803.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.86 : 18,953.19 = 3,868.64 : x
  2. Step 2: Convert to fraction form
    12,634.86/18,953.19 = 3,868.64/x
  3. Step 3: Cross multiply
    12,634.86x = 18,953.19 × 3,868.64
  4. Step 4: Simplify right side
    12,634.86x = 73,322,974.20
  5. Step 5: Solve for x
    x = 73,322,974.20/12,634.86
  6. Step 6: Final answer
    x = 5,803.23

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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.