Home / 12,662.44-18,993.70-3,897.30

Finding the Fourth Proportional to 12,662.44, 18,993.70 and 3,897.30

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Solution

The fourth proportional to 12,662.44, 18,993.70 and 3,897.30 is: 5,845.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,662.44 : 18,993.70 = 3,897.30 : x
  2. Step 2: Convert to fraction form
    12,662.44/18,993.70 = 3,897.30/x
  3. Step 3: Cross multiply
    12,662.44x = 18,993.70 × 3,897.30
  4. Step 4: Simplify right side
    12,662.44x = 74,024,147.01
  5. Step 5: Solve for x
    x = 74,024,147.01/12,662.44
  6. Step 6: Final answer
    x = 5,845.96

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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.