Home / 19,286.16-28,930.68-8,191.60

Finding the Fourth Proportional to 19,286.16, 28,930.68 and 8,191.60

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Solution

The fourth proportional to 19,286.16, 28,930.68 and 8,191.60 is: 12,288.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.16 : 28,930.68 = 8,191.60 : x
  2. Step 2: Convert to fraction form
    19,286.16/28,930.68 = 8,191.60/x
  3. Step 3: Cross multiply
    19,286.16x = 28,930.68 × 8,191.60
  4. Step 4: Simplify right side
    19,286.16x = 236,988,558.29
  5. Step 5: Solve for x
    x = 236,988,558.29/19,286.16
  6. Step 6: Final answer
    x = 12,288.01

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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.