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Finding the Fourth Proportional to 19,289.67, 28,932.69 and 6,809.19

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Solution

The fourth proportional to 19,289.67, 28,932.69 and 6,809.19 is: 10,213.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,289.67 : 28,932.69 = 6,809.19 : x
  2. Step 2: Convert to fraction form
    19,289.67/28,932.69 = 6,809.19/x
  3. Step 3: Cross multiply
    19,289.67x = 28,932.69 × 6,809.19
  4. Step 4: Simplify right side
    19,289.67x = 197,008,183.42
  5. Step 5: Solve for x
    x = 197,008,183.42/19,289.67
  6. Step 6: Final answer
    x = 10,213.14

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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.