Home / 12,351.03-18,486.77-8,137.75

Finding the Fourth Proportional to 12,351.03, 18,486.77 and 8,137.75

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Solution

The fourth proportional to 12,351.03, 18,486.77 and 8,137.75 is: 12,180.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,351.03 : 18,486.77 = 8,137.75 : x
  2. Step 2: Convert to fraction form
    12,351.03/18,486.77 = 8,137.75/x
  3. Step 3: Cross multiply
    12,351.03x = 18,486.77 × 8,137.75
  4. Step 4: Simplify right side
    12,351.03x = 150,440,660.32
  5. Step 5: Solve for x
    x = 150,440,660.32/12,351.03
  6. Step 6: Final answer
    x = 12,180.41

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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.