Home / 8,329.22-12,485.80-2,778.69

Finding the Fourth Proportional to 8,329.22, 12,485.80 and 2,778.69

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Solution

The fourth proportional to 8,329.22, 12,485.80 and 2,778.69 is: 4,165.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329.22 : 12,485.80 = 2,778.69 : x
  2. Step 2: Convert to fraction form
    8,329.22/12,485.80 = 2,778.69/x
  3. Step 3: Cross multiply
    8,329.22x = 12,485.80 × 2,778.69
  4. Step 4: Simplify right side
    8,329.22x = 34,694,167.60
  5. Step 5: Solve for x
    x = 34,694,167.60/8,329.22
  6. Step 6: Final answer
    x = 4,165.36

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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.