Home / 8,138.49-12,207.72-2,295.09

Finding the Fourth Proportional to 8,138.49, 12,207.72 and 2,295.09

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Solution

The fourth proportional to 8,138.49, 12,207.72 and 2,295.09 is: 3,442.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.49 : 12,207.72 = 2,295.09 : x
  2. Step 2: Convert to fraction form
    8,138.49/12,207.72 = 2,295.09/x
  3. Step 3: Cross multiply
    8,138.49x = 12,207.72 × 2,295.09
  4. Step 4: Simplify right side
    8,138.49x = 28,017,816.09
  5. Step 5: Solve for x
    x = 28,017,816.09/8,138.49
  6. Step 6: Final answer
    x = 3,442.63

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1.5x scale

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.