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Finding the Fourth Proportional to 8,078.93, 12,118.39 and 2,235.39

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Solution

The fourth proportional to 8,078.93, 12,118.39 and 2,235.39 is: 3,353.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.93 : 12,118.39 = 2,235.39 : x
  2. Step 2: Convert to fraction form
    8,078.93/12,118.39 = 2,235.39/x
  3. Step 3: Cross multiply
    8,078.93x = 12,118.39 × 2,235.39
  4. Step 4: Simplify right side
    8,078.93x = 27,089,327.82
  5. Step 5: Solve for x
    x = 27,089,327.82/8,078.93
  6. Step 6: Final answer
    x = 3,353.08

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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.