Home / 7,771.20-10,723.77-4,626.78

Finding the Fourth Proportional to 7,771.20, 10,723.77 and 4,626.78

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Solution

The fourth proportional to 7,771.20, 10,723.77 and 4,626.78 is: 6,384.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.20 : 10,723.77 = 4,626.78 : x
  2. Step 2: Convert to fraction form
    7,771.20/10,723.77 = 4,626.78/x
  3. Step 3: Cross multiply
    7,771.20x = 10,723.77 × 4,626.78
  4. Step 4: Simplify right side
    7,771.20x = 49,616,524.56
  5. Step 5: Solve for x
    x = 49,616,524.56/7,771.20
  6. Step 6: Final answer
    x = 6,384.67

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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.