Home / 7,700.20-10,626.32-4,512.78

Finding the Fourth Proportional to 7,700.20, 10,626.32 and 4,512.78

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Solution

The fourth proportional to 7,700.20, 10,626.32 and 4,512.78 is: 6,227.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700.20 : 10,626.32 = 4,512.78 : x
  2. Step 2: Convert to fraction form
    7,700.20/10,626.32 = 4,512.78/x
  3. Step 3: Cross multiply
    7,700.20x = 10,626.32 × 4,512.78
  4. Step 4: Simplify right side
    7,700.20x = 47,954,255.65
  5. Step 5: Solve for x
    x = 47,954,255.65/7,700.20
  6. Step 6: Final answer
    x = 6,227.67

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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.