Home / 13,768.82-20,651.45-4,408.06

Finding the Fourth Proportional to 13,768.82, 20,651.45 and 4,408.06

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Solution

The fourth proportional to 13,768.82, 20,651.45 and 4,408.06 is: 6,611.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.82 : 20,651.45 = 4,408.06 : x
  2. Step 2: Convert to fraction form
    13,768.82/20,651.45 = 4,408.06/x
  3. Step 3: Cross multiply
    13,768.82x = 20,651.45 × 4,408.06
  4. Step 4: Simplify right side
    13,768.82x = 91,032,830.69
  5. Step 5: Solve for x
    x = 91,032,830.69/13,768.82
  6. Step 6: Final answer
    x = 6,611.52

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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.