Home / 12,738.58-19,103.32-4,416.37

Finding the Fourth Proportional to 12,738.58, 19,103.32 and 4,416.37

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Solution

The fourth proportional to 12,738.58, 19,103.32 and 4,416.37 is: 6,622.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.58 : 19,103.32 = 4,416.37 : x
  2. Step 2: Convert to fraction form
    12,738.58/19,103.32 = 4,416.37/x
  3. Step 3: Cross multiply
    12,738.58x = 19,103.32 × 4,416.37
  4. Step 4: Simplify right side
    12,738.58x = 84,367,329.35
  5. Step 5: Solve for x
    x = 84,367,329.35/12,738.58
  6. Step 6: Final answer
    x = 6,622.98

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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.