Home / 7,078.37-10,614.81-3,378.69

Finding the Fourth Proportional to 7,078.37, 10,614.81 and 3,378.69

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Solution

The fourth proportional to 7,078.37, 10,614.81 and 3,378.69 is: 5,066.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.37 : 10,614.81 = 3,378.69 : x
  2. Step 2: Convert to fraction form
    7,078.37/10,614.81 = 3,378.69/x
  3. Step 3: Cross multiply
    7,078.37x = 10,614.81 × 3,378.69
  4. Step 4: Simplify right side
    7,078.37x = 35,864,165.07
  5. Step 5: Solve for x
    x = 35,864,165.07/7,078.37
  6. Step 6: Final answer
    x = 5,066.73

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.