Home / 18,668.68-27,998.16-8,805.36

Finding the Fourth Proportional to 18,668.68, 27,998.16 and 8,805.36

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Solution

The fourth proportional to 18,668.68, 27,998.16 and 8,805.36 is: 13,205.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.68 : 27,998.16 = 8,805.36 : x
  2. Step 2: Convert to fraction form
    18,668.68/27,998.16 = 8,805.36/x
  3. Step 3: Cross multiply
    18,668.68x = 27,998.16 × 8,805.36
  4. Step 4: Simplify right side
    18,668.68x = 246,533,878.14
  5. Step 5: Solve for x
    x = 246,533,878.14/18,668.68
  6. Step 6: Final answer
    x = 13,205.75

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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.