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Finding the Fourth Proportional to 8,384.46, 12,576.26 and 3,119.46

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Solution

The fourth proportional to 8,384.46, 12,576.26 and 3,119.46 is: 4,679.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,384.46 : 12,576.26 = 3,119.46 : x
  2. Step 2: Convert to fraction form
    8,384.46/12,576.26 = 3,119.46/x
  3. Step 3: Cross multiply
    8,384.46x = 12,576.26 × 3,119.46
  4. Step 4: Simplify right side
    8,384.46x = 39,231,140.02
  5. Step 5: Solve for x
    x = 39,231,140.02/8,384.46
  6. Step 6: Final answer
    x = 4,679.03

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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.