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Finding the Fourth Proportional to 8,055.36, 12,078.30 and 3,670.44

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Solution

The fourth proportional to 8,055.36, 12,078.30 and 3,670.44 is: 5,503.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,055.36 : 12,078.30 = 3,670.44 : x
  2. Step 2: Convert to fraction form
    8,055.36/12,078.30 = 3,670.44/x
  3. Step 3: Cross multiply
    8,055.36x = 12,078.30 × 3,670.44
  4. Step 4: Simplify right side
    8,055.36x = 44,332,675.45
  5. Step 5: Solve for x
    x = 44,332,675.45/8,055.36
  6. Step 6: Final answer
    x = 5,503.50

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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.