Home / 8,138.16-12,207.32-2,294.88

Finding the Fourth Proportional to 8,138.16, 12,207.32 and 2,294.88

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Solution

The fourth proportional to 8,138.16, 12,207.32 and 2,294.88 is: 3,442.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.16 : 12,207.32 = 2,294.88 : x
  2. Step 2: Convert to fraction form
    8,138.16/12,207.32 = 2,294.88/x
  3. Step 3: Cross multiply
    8,138.16x = 12,207.32 × 2,294.88
  4. Step 4: Simplify right side
    8,138.16x = 28,014,334.52
  5. Step 5: Solve for x
    x = 28,014,334.52/8,138.16
  6. Step 6: Final answer
    x = 3,442.34

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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.