Home / 14,639.88-21,908.79-11,976.60

Finding the Fourth Proportional to 14,639.88, 21,908.79 and 11,976.60

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Solution

The fourth proportional to 14,639.88, 21,908.79 and 11,976.60 is: 17,923.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.88 : 21,908.79 = 11,976.60 : x
  2. Step 2: Convert to fraction form
    14,639.88/21,908.79 = 11,976.60/x
  3. Step 3: Cross multiply
    14,639.88x = 21,908.79 × 11,976.60
  4. Step 4: Simplify right side
    14,639.88x = 262,392,814.31
  5. Step 5: Solve for x
    x = 262,392,814.31/14,639.88
  6. Step 6: Final answer
    x = 17,923.15

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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.