Home / 8,069.49-12,107.34-3,909.18

Finding the Fourth Proportional to 8,069.49, 12,107.34 and 3,909.18

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Solution

The fourth proportional to 8,069.49, 12,107.34 and 3,909.18 is: 5,865.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,069.49 : 12,107.34 = 3,909.18 : x
  2. Step 2: Convert to fraction form
    8,069.49/12,107.34 = 3,909.18/x
  3. Step 3: Cross multiply
    8,069.49x = 12,107.34 × 3,909.18
  4. Step 4: Simplify right side
    8,069.49x = 47,329,771.38
  5. Step 5: Solve for x
    x = 47,329,771.38/8,069.49
  6. Step 6: Final answer
    x = 5,865.27

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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.