Home / 18,789.99-25,917.71-12,084.10

Finding the Fourth Proportional to 18,789.99, 25,917.71 and 12,084.10

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Solution

The fourth proportional to 18,789.99, 25,917.71 and 12,084.10 is: 16,668.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.99 : 25,917.71 = 12,084.10 : x
  2. Step 2: Convert to fraction form
    18,789.99/25,917.71 = 12,084.10/x
  3. Step 3: Cross multiply
    18,789.99x = 25,917.71 × 12,084.10
  4. Step 4: Simplify right side
    18,789.99x = 313,192,074.20
  5. Step 5: Solve for x
    x = 313,192,074.20/18,789.99
  6. Step 6: Final answer
    x = 16,668.03

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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.