Home / 10,198.49-15,299.24-3,179.16

Finding the Fourth Proportional to 10,198.49, 15,299.24 and 3,179.16

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Solution

The fourth proportional to 10,198.49, 15,299.24 and 3,179.16 is: 4,769.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.49 : 15,299.24 = 3,179.16 : x
  2. Step 2: Convert to fraction form
    10,198.49/15,299.24 = 3,179.16/x
  3. Step 3: Cross multiply
    10,198.49x = 15,299.24 × 3,179.16
  4. Step 4: Simplify right side
    10,198.49x = 48,638,715.94
  5. Step 5: Solve for x
    x = 48,638,715.94/10,198.49
  6. Step 6: Final answer
    x = 4,769.21

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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.