Home / 7,839.14-11,757.15-3,678.08

Finding the Fourth Proportional to 7,839.14, 11,757.15 and 3,678.08

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Solution

The fourth proportional to 7,839.14, 11,757.15 and 3,678.08 is: 5,516.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.14 : 11,757.15 = 3,678.08 : x
  2. Step 2: Convert to fraction form
    7,839.14/11,757.15 = 3,678.08/x
  3. Step 3: Cross multiply
    7,839.14x = 11,757.15 × 3,678.08
  4. Step 4: Simplify right side
    7,839.14x = 43,243,738.27
  5. Step 5: Solve for x
    x = 43,243,738.27/7,839.14
  6. Step 6: Final answer
    x = 5,516.39

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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.