Home / 12,137.25-18,195.04-4,739.98

Finding the Fourth Proportional to 12,137.25, 18,195.04 and 4,739.98

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Solution

The fourth proportional to 12,137.25, 18,195.04 and 4,739.98 is: 7,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.25 : 18,195.04 = 4,739.98 : x
  2. Step 2: Convert to fraction form
    12,137.25/18,195.04 = 4,739.98/x
  3. Step 3: Cross multiply
    12,137.25x = 18,195.04 × 4,739.98
  4. Step 4: Simplify right side
    12,137.25x = 86,244,125.70
  5. Step 5: Solve for x
    x = 86,244,125.70/12,137.25
  6. Step 6: Final answer
    x = 7,105.74

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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.