Home / 12,245.36-18,369.42-3,923.44

Finding the Fourth Proportional to 12,245.36, 18,369.42 and 3,923.44

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Solution

The fourth proportional to 12,245.36, 18,369.42 and 3,923.44 is: 5,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.36 : 18,369.42 = 3,923.44 : x
  2. Step 2: Convert to fraction form
    12,245.36/18,369.42 = 3,923.44/x
  3. Step 3: Cross multiply
    12,245.36x = 18,369.42 × 3,923.44
  4. Step 4: Simplify right side
    12,245.36x = 72,071,317.20
  5. Step 5: Solve for x
    x = 72,071,317.20/12,245.36
  6. Step 6: Final answer
    x = 5,885.60

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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.