Home / 19,698.87-27,179.60-12,634.86

Finding the Fourth Proportional to 19,698.87, 27,179.60 and 12,634.86

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Solution

The fourth proportional to 19,698.87, 27,179.60 and 12,634.86 is: 17,433.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,698.87 : 27,179.60 = 12,634.86 : x
  2. Step 2: Convert to fraction form
    19,698.87/27,179.60 = 12,634.86/x
  3. Step 3: Cross multiply
    19,698.87x = 27,179.60 × 12,634.86
  4. Step 4: Simplify right side
    19,698.87x = 343,410,550.68
  5. Step 5: Solve for x
    x = 343,410,550.68/19,698.87
  6. Step 6: Final answer
    x = 17,433.00

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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.