Home / 8,416.75-12,629.30-6,190.09

Finding the Fourth Proportional to 8,416.75, 12,629.30 and 6,190.09

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Solution

The fourth proportional to 8,416.75, 12,629.30 and 6,190.09 is: 9,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.75 : 12,629.30 = 6,190.09 : x
  2. Step 2: Convert to fraction form
    8,416.75/12,629.30 = 6,190.09/x
  3. Step 3: Cross multiply
    8,416.75x = 12,629.30 × 6,190.09
  4. Step 4: Simplify right side
    8,416.75x = 78,176,503.64
  5. Step 5: Solve for x
    x = 78,176,503.64/8,416.75
  6. Step 6: Final answer
    x = 9,288.21

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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.