Home / 14,049.49-21,074.07-8,122.60

Finding the Fourth Proportional to 14,049.49, 21,074.07 and 8,122.60

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Solution

The fourth proportional to 14,049.49, 21,074.07 and 8,122.60 is: 12,183.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,049.49 : 21,074.07 = 8,122.60 : x
  2. Step 2: Convert to fraction form
    14,049.49/21,074.07 = 8,122.60/x
  3. Step 3: Cross multiply
    14,049.49x = 21,074.07 × 8,122.60
  4. Step 4: Simplify right side
    14,049.49x = 171,176,240.98
  5. Step 5: Solve for x
    x = 171,176,240.98/14,049.49
  6. Step 6: Final answer
    x = 12,183.80

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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.