Home / 7,785.09-11,678.27-3,283.44

Finding the Fourth Proportional to 7,785.09, 11,678.27 and 3,283.44

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Solution

The fourth proportional to 7,785.09, 11,678.27 and 3,283.44 is: 4,925.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.09 : 11,678.27 = 3,283.44 : x
  2. Step 2: Convert to fraction form
    7,785.09/11,678.27 = 3,283.44/x
  3. Step 3: Cross multiply
    7,785.09x = 11,678.27 × 3,283.44
  4. Step 4: Simplify right side
    7,785.09x = 38,344,882.43
  5. Step 5: Solve for x
    x = 38,344,882.43/7,785.09
  6. Step 6: Final answer
    x = 4,925.43

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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.