Home / 7,018.05-9,684.91-3,874.23

Finding the Fourth Proportional to 7,018.05, 9,684.91 and 3,874.23

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Solution

The fourth proportional to 7,018.05, 9,684.91 and 3,874.23 is: 5,346.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.05 : 9,684.91 = 3,874.23 : x
  2. Step 2: Convert to fraction form
    7,018.05/9,684.91 = 3,874.23/x
  3. Step 3: Cross multiply
    7,018.05x = 9,684.91 × 3,874.23
  4. Step 4: Simplify right side
    7,018.05x = 37,521,568.87
  5. Step 5: Solve for x
    x = 37,521,568.87/7,018.05
  6. Step 6: Final answer
    x = 5,346.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.