Home / 7,786.14-11,678.91-2,239.47

Finding the Fourth Proportional to 7,786.14, 11,678.91 and 2,239.47

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Solution

The fourth proportional to 7,786.14, 11,678.91 and 2,239.47 is: 3,359.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.14 : 11,678.91 = 2,239.47 : x
  2. Step 2: Convert to fraction form
    7,786.14/11,678.91 = 2,239.47/x
  3. Step 3: Cross multiply
    7,786.14x = 11,678.91 × 2,239.47
  4. Step 4: Simplify right side
    7,786.14x = 26,154,568.58
  5. Step 5: Solve for x
    x = 26,154,568.58/7,786.14
  6. Step 6: Final answer
    x = 3,359.12

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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.