Home / 18,936.44-28,408.72-5,788.38

Finding the Fourth Proportional to 18,936.44, 28,408.72 and 5,788.38

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Solution

The fourth proportional to 18,936.44, 28,408.72 and 5,788.38 is: 8,683.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.44 : 28,408.72 = 5,788.38 : x
  2. Step 2: Convert to fraction form
    18,936.44/28,408.72 = 5,788.38/x
  3. Step 3: Cross multiply
    18,936.44x = 28,408.72 × 5,788.38
  4. Step 4: Simplify right side
    18,936.44x = 164,440,466.67
  5. Step 5: Solve for x
    x = 164,440,466.67/18,936.44
  6. Step 6: Final answer
    x = 8,683.81

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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.