Home / 13,911.89-19,198.52-8,249.50

Finding the Fourth Proportional to 13,911.89, 19,198.52 and 8,249.50

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Solution

The fourth proportional to 13,911.89, 19,198.52 and 8,249.50 is: 11,384.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.89 : 19,198.52 = 8,249.50 : x
  2. Step 2: Convert to fraction form
    13,911.89/19,198.52 = 8,249.50/x
  3. Step 3: Cross multiply
    13,911.89x = 19,198.52 × 8,249.50
  4. Step 4: Simplify right side
    13,911.89x = 158,378,190.74
  5. Step 5: Solve for x
    x = 158,378,190.74/13,911.89
  6. Step 6: Final answer
    x = 11,384.38

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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.