Home / 8,069.85-12,103.81-2,147.18

Finding the Fourth Proportional to 8,069.85, 12,103.81 and 2,147.18

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Solution

The fourth proportional to 8,069.85, 12,103.81 and 2,147.18 is: 3,220.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,069.85 : 12,103.81 = 2,147.18 : x
  2. Step 2: Convert to fraction form
    8,069.85/12,103.81 = 2,147.18/x
  3. Step 3: Cross multiply
    8,069.85x = 12,103.81 × 2,147.18
  4. Step 4: Simplify right side
    8,069.85x = 25,989,004.95
  5. Step 5: Solve for x
    x = 25,989,004.95/8,069.85
  6. Step 6: Final answer
    x = 3,220.51

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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.