Home / 8,078.45-12,117.96-2,235.50

Finding the Fourth Proportional to 8,078.45, 12,117.96 and 2,235.50

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Solution

The fourth proportional to 8,078.45, 12,117.96 and 2,235.50 is: 3,353.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078.45 : 12,117.96 = 2,235.50 : x
  2. Step 2: Convert to fraction form
    8,078.45/12,117.96 = 2,235.50/x
  3. Step 3: Cross multiply
    8,078.45x = 12,117.96 × 2,235.50
  4. Step 4: Simplify right side
    8,078.45x = 27,089,699.58
  5. Step 5: Solve for x
    x = 27,089,699.58/8,078.45
  6. Step 6: Final answer
    x = 3,353.33

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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.