Home / 12,137.85-18,173.97-7,741.98

Finding the Fourth Proportional to 12,137.85, 18,173.97 and 7,741.98

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Solution

The fourth proportional to 12,137.85, 18,173.97 and 7,741.98 is: 11,592.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.85 : 18,173.97 = 7,741.98 : x
  2. Step 2: Convert to fraction form
    12,137.85/18,173.97 = 7,741.98/x
  3. Step 3: Cross multiply
    12,137.85x = 18,173.97 × 7,741.98
  4. Step 4: Simplify right side
    12,137.85x = 140,702,512.26
  5. Step 5: Solve for x
    x = 140,702,512.26/12,137.85
  6. Step 6: Final answer
    x = 11,592.05

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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.