Home / 8,138.95-12,208.73-2,295.72

Finding the Fourth Proportional to 8,138.95, 12,208.73 and 2,295.72

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Solution

The fourth proportional to 8,138.95, 12,208.73 and 2,295.72 is: 3,443.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.95 : 12,208.73 = 2,295.72 : x
  2. Step 2: Convert to fraction form
    8,138.95/12,208.73 = 2,295.72/x
  3. Step 3: Cross multiply
    8,138.95x = 12,208.73 × 2,295.72
  4. Step 4: Simplify right side
    8,138.95x = 28,027,825.64
  5. Step 5: Solve for x
    x = 28,027,825.64/8,138.95
  6. Step 6: Final answer
    x = 3,443.67

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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.