Home / 10,819.97-16,230.69-6,384.12

Finding the Fourth Proportional to 10,819.97, 16,230.69 and 6,384.12

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Solution

The fourth proportional to 10,819.97, 16,230.69 and 6,384.12 is: 9,576.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,819.97 : 16,230.69 = 6,384.12 : x
  2. Step 2: Convert to fraction form
    10,819.97/16,230.69 = 6,384.12/x
  3. Step 3: Cross multiply
    10,819.97x = 16,230.69 × 6,384.12
  4. Step 4: Simplify right side
    10,819.97x = 103,618,591.49
  5. Step 5: Solve for x
    x = 103,618,591.49/10,819.97
  6. Step 6: Final answer
    x = 9,576.61

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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.