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Finding the Fourth Proportional to 6,245.40, 8,628.78 and 6,183.96

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Solution

The fourth proportional to 6,245.40, 8,628.78 and 6,183.96 is: 8,543.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,245.40 : 8,628.78 = 6,183.96 : x
  2. Step 2: Convert to fraction form
    6,245.40/8,628.78 = 6,183.96/x
  3. Step 3: Cross multiply
    6,245.40x = 8,628.78 × 6,183.96
  4. Step 4: Simplify right side
    6,245.40x = 53,360,030.37
  5. Step 5: Solve for x
    x = 53,360,030.37/6,245.40
  6. Step 6: Final answer
    x = 8,543.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.