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Finding the Fourth Proportional to 19,081, 28,622.94 and 6,769

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Solution

The fourth proportional to 19,081, 28,622.94 and 6,769 is: 10,154.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,081 : 28,622.94 = 6,769 : x
  2. Step 2: Convert to fraction form
    19,081/28,622.94 = 6,769/x
  3. Step 3: Cross multiply
    19,081x = 28,622.94 × 6,769
  4. Step 4: Simplify right side
    19,081x = 193,748,680.86
  5. Step 5: Solve for x
    x = 193,748,680.86/19,081
  6. Step 6: Final answer
    x = 10,154.01

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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.