Home / 12,173.84-18,260.16-3,408.56

Finding the Fourth Proportional to 12,173.84, 18,260.16 and 3,408.56

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Solution

The fourth proportional to 12,173.84, 18,260.16 and 3,408.56 is: 5,112.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.84 : 18,260.16 = 3,408.56 : x
  2. Step 2: Convert to fraction form
    12,173.84/18,260.16 = 3,408.56/x
  3. Step 3: Cross multiply
    12,173.84x = 18,260.16 × 3,408.56
  4. Step 4: Simplify right side
    12,173.84x = 62,240,850.97
  5. Step 5: Solve for x
    x = 62,240,850.97/12,173.84
  6. Step 6: Final answer
    x = 5,112.67

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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.