Home / 7,018.12-9,684.94-3,874.24

Finding the Fourth Proportional to 7,018.12, 9,684.94 and 3,874.24

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Solution

The fourth proportional to 7,018.12, 9,684.94 and 3,874.24 is: 5,346.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.12 : 9,684.94 = 3,874.24 : x
  2. Step 2: Convert to fraction form
    7,018.12/9,684.94 = 3,874.24/x
  3. Step 3: Cross multiply
    7,018.12x = 9,684.94 × 3,874.24
  4. Step 4: Simplify right side
    7,018.12x = 37,521,781.95
  5. Step 5: Solve for x
    x = 37,521,781.95/7,018.12
  6. Step 6: Final answer
    x = 5,346.41

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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.