Home / 13,816.69-19,069.97-8,149.32

Finding the Fourth Proportional to 13,816.69, 19,069.97 and 8,149.32

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Solution

The fourth proportional to 13,816.69, 19,069.97 and 8,149.32 is: 11,247.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.69 : 19,069.97 = 8,149.32 : x
  2. Step 2: Convert to fraction form
    13,816.69/19,069.97 = 8,149.32/x
  3. Step 3: Cross multiply
    13,816.69x = 19,069.97 × 8,149.32
  4. Step 4: Simplify right side
    13,816.69x = 155,407,287.92
  5. Step 5: Solve for x
    x = 155,407,287.92/13,816.69
  6. Step 6: Final answer
    x = 11,247.79

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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.