Home / 7,785.09-11,678.22-2,238.39

Finding the Fourth Proportional to 7,785.09, 11,678.22 and 2,238.39

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Solution

The fourth proportional to 7,785.09, 11,678.22 and 2,238.39 is: 3,357.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.09 : 11,678.22 = 2,238.39 : x
  2. Step 2: Convert to fraction form
    7,785.09/11,678.22 = 2,238.39/x
  3. Step 3: Cross multiply
    7,785.09x = 11,678.22 × 2,238.39
  4. Step 4: Simplify right side
    7,785.09x = 26,140,410.87
  5. Step 5: Solve for x
    x = 26,140,410.87/7,785.09
  6. Step 6: Final answer
    x = 3,357.75

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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.