Home / 14,911.96-20,578.70-8,198.24

Finding the Fourth Proportional to 14,911.96, 20,578.70 and 8,198.24

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Solution

The fourth proportional to 14,911.96, 20,578.70 and 8,198.24 is: 11,313.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,911.96 : 20,578.70 = 8,198.24 : x
  2. Step 2: Convert to fraction form
    14,911.96/20,578.70 = 8,198.24/x
  3. Step 3: Cross multiply
    14,911.96x = 20,578.70 × 8,198.24
  4. Step 4: Simplify right side
    14,911.96x = 168,709,121.49
  5. Step 5: Solve for x
    x = 168,709,121.49/14,911.96
  6. Step 6: Final answer
    x = 11,313.68

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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.