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Finding the Fourth Proportional to 6,367.34, 8,789.45 and 6,199.67

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Solution

The fourth proportional to 6,367.34, 8,789.45 and 6,199.67 is: 8,557.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,367.34 : 8,789.45 = 6,199.67 : x
  2. Step 2: Convert to fraction form
    6,367.34/8,789.45 = 6,199.67/x
  3. Step 3: Cross multiply
    6,367.34x = 8,789.45 × 6,199.67
  4. Step 4: Simplify right side
    6,367.34x = 54,491,680.46
  5. Step 5: Solve for x
    x = 54,491,680.46/6,367.34
  6. Step 6: Final answer
    x = 8,557.99

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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.