Home / 8,299.10-12,422.73-6,338.30

Finding the Fourth Proportional to 8,299.10, 12,422.73 and 6,338.30

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Solution

The fourth proportional to 8,299.10, 12,422.73 and 6,338.30 is: 9,487.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,299.10 : 12,422.73 = 6,338.30 : x
  2. Step 2: Convert to fraction form
    8,299.10/12,422.73 = 6,338.30/x
  3. Step 3: Cross multiply
    8,299.10x = 12,422.73 × 6,338.30
  4. Step 4: Simplify right side
    8,299.10x = 78,738,989.56
  5. Step 5: Solve for x
    x = 78,738,989.56/8,299.10
  6. Step 6: Final answer
    x = 9,487.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.