Home / 8,258.74-12,388.07-2,018.78

Finding the Fourth Proportional to 8,258.74, 12,388.07 and 2,018.78

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Solution

The fourth proportional to 8,258.74, 12,388.07 and 2,018.78 is: 3,028.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.74 : 12,388.07 = 2,018.78 : x
  2. Step 2: Convert to fraction form
    8,258.74/12,388.07 = 2,018.78/x
  3. Step 3: Cross multiply
    8,258.74x = 12,388.07 × 2,018.78
  4. Step 4: Simplify right side
    8,258.74x = 25,008,777.86
  5. Step 5: Solve for x
    x = 25,008,777.86/8,258.74
  6. Step 6: Final answer
    x = 3,028.16

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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.