Home / 8,055.91-12,078.62-3,378.92

Finding the Fourth Proportional to 8,055.91, 12,078.62 and 3,378.92

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Solution

The fourth proportional to 8,055.91, 12,078.62 and 3,378.92 is: 5,066.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,055.91 : 12,078.62 = 3,378.92 : x
  2. Step 2: Convert to fraction form
    8,055.91/12,078.62 = 3,378.92/x
  3. Step 3: Cross multiply
    8,055.91x = 12,078.62 × 3,378.92
  4. Step 4: Simplify right side
    8,055.91x = 40,812,626.07
  5. Step 5: Solve for x
    x = 40,812,626.07/8,055.91
  6. Step 6: Final answer
    x = 5,066.17

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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.