Home / 6,384.20-8,808.60-4,747.72

Finding the Fourth Proportional to 6,384.20, 8,808.60 and 4,747.72

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Solution

The fourth proportional to 6,384.20, 8,808.60 and 4,747.72 is: 6,550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,384.20 : 8,808.60 = 4,747.72 : x
  2. Step 2: Convert to fraction form
    6,384.20/8,808.60 = 4,747.72/x
  3. Step 3: Cross multiply
    6,384.20x = 8,808.60 × 4,747.72
  4. Step 4: Simplify right side
    6,384.20x = 41,820,766.39
  5. Step 5: Solve for x
    x = 41,820,766.39/6,384.20
  6. Step 6: Final answer
    x = 6,550.67

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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.