Home / 8,208.36-12,310.62-3,015.40

Finding the Fourth Proportional to 8,208.36, 12,310.62 and 3,015.40

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Solution

The fourth proportional to 8,208.36, 12,310.62 and 3,015.40 is: 4,522.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.36 : 12,310.62 = 3,015.40 : x
  2. Step 2: Convert to fraction form
    8,208.36/12,310.62 = 3,015.40/x
  3. Step 3: Cross multiply
    8,208.36x = 12,310.62 × 3,015.40
  4. Step 4: Simplify right side
    8,208.36x = 37,121,443.55
  5. Step 5: Solve for x
    x = 37,121,443.55/8,208.36
  6. Step 6: Final answer
    x = 4,522.39

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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.