Home / 12,558.42-18,837.54-3,198.35

Finding the Fourth Proportional to 12,558.42, 18,837.54 and 3,198.35

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Solution

The fourth proportional to 12,558.42, 18,837.54 and 3,198.35 is: 4,797.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.42 : 18,837.54 = 3,198.35 : x
  2. Step 2: Convert to fraction form
    12,558.42/18,837.54 = 3,198.35/x
  3. Step 3: Cross multiply
    12,558.42x = 18,837.54 × 3,198.35
  4. Step 4: Simplify right side
    12,558.42x = 60,249,093.15
  5. Step 5: Solve for x
    x = 60,249,093.15/12,558.42
  6. Step 6: Final answer
    x = 4,797.51

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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.