Home / 8,258.40-12,388.20-3,328.08

Finding the Fourth Proportional to 8,258.40, 12,388.20 and 3,328.08

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Solution

The fourth proportional to 8,258.40, 12,388.20 and 3,328.08 is: 4,992.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.40 : 12,388.20 = 3,328.08 : x
  2. Step 2: Convert to fraction form
    8,258.40/12,388.20 = 3,328.08/x
  3. Step 3: Cross multiply
    8,258.40x = 12,388.20 × 3,328.08
  4. Step 4: Simplify right side
    8,258.40x = 41,228,920.66
  5. Step 5: Solve for x
    x = 41,228,920.66/8,258.40
  6. Step 6: Final answer
    x = 4,992.36

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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.