Home / 18,989.08-28,464.90-6,668.44

Finding the Fourth Proportional to 18,989.08, 28,464.90 and 6,668.44

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Solution

The fourth proportional to 18,989.08, 28,464.90 and 6,668.44 is: 9,996.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.08 : 28,464.90 = 6,668.44 : x
  2. Step 2: Convert to fraction form
    18,989.08/28,464.90 = 6,668.44/x
  3. Step 3: Cross multiply
    18,989.08x = 28,464.90 × 6,668.44
  4. Step 4: Simplify right side
    18,989.08x = 189,816,477.76
  5. Step 5: Solve for x
    x = 189,816,477.76/18,989.08
  6. Step 6: Final answer
    x = 9,996.09

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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.