Home / 8,055.80-12,078.84-3,612.66

Finding the Fourth Proportional to 8,055.80, 12,078.84 and 3,612.66

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Solution

The fourth proportional to 8,055.80, 12,078.84 and 3,612.66 is: 5,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,055.80 : 12,078.84 = 3,612.66 : x
  2. Step 2: Convert to fraction form
    8,055.80/12,078.84 = 3,612.66/x
  3. Step 3: Cross multiply
    8,055.80x = 12,078.84 × 3,612.66
  4. Step 4: Simplify right side
    8,055.80x = 43,636,690.05
  5. Step 5: Solve for x
    x = 43,636,690.05/8,055.80
  6. Step 6: Final answer
    x = 5,416.80

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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.