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Finding the Fourth Proportional to 10,126, 15,189 and 2,830

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Solution

The fourth proportional to 10,126, 15,189 and 2,830 is: 4,245

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126 : 15,189 = 2,830 : x
  2. Step 2: Convert to fraction form
    10,126/15,189 = 2,830/x
  3. Step 3: Cross multiply
    10,126x = 15,189 × 2,830
  4. Step 4: Simplify right side
    10,126x = 42,984,870
  5. Step 5: Solve for x
    x = 42,984,870/10,126
  6. Step 6: Final answer
    x = 4,245

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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.