Home / 18,668.22-28,006.58-5,520.09

Finding the Fourth Proportional to 18,668.22, 28,006.58 and 5,520.09

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Solution

The fourth proportional to 18,668.22, 28,006.58 and 5,520.09 is: 8,281.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.22 : 28,006.58 = 5,520.09 : x
  2. Step 2: Convert to fraction form
    18,668.22/28,006.58 = 5,520.09/x
  3. Step 3: Cross multiply
    18,668.22x = 28,006.58 × 5,520.09
  4. Step 4: Simplify right side
    18,668.22x = 154,598,842.19
  5. Step 5: Solve for x
    x = 154,598,842.19/18,668.22
  6. Step 6: Final answer
    x = 8,281.39

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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.