Home / 11,805.14-16,292.24-8,815.79

Finding the Fourth Proportional to 11,805.14, 16,292.24 and 8,815.79

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Solution

The fourth proportional to 11,805.14, 16,292.24 and 8,815.79 is: 12,166.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.14 : 16,292.24 = 8,815.79 : x
  2. Step 2: Convert to fraction form
    11,805.14/16,292.24 = 8,815.79/x
  3. Step 3: Cross multiply
    11,805.14x = 16,292.24 × 8,815.79
  4. Step 4: Simplify right side
    11,805.14x = 143,628,873.99
  5. Step 5: Solve for x
    x = 143,628,873.99/11,805.14
  6. Step 6: Final answer
    x = 12,166.64

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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.