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Finding the Fourth Proportional to 14,608, 21,912 and 4,880

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Solution

The fourth proportional to 14,608, 21,912 and 4,880 is: 7,320

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,608 : 21,912 = 4,880 : x
  2. Step 2: Convert to fraction form
    14,608/21,912 = 4,880/x
  3. Step 3: Cross multiply
    14,608x = 21,912 × 4,880
  4. Step 4: Simplify right side
    14,608x = 106,930,560
  5. Step 5: Solve for x
    x = 106,930,560/14,608
  6. Step 6: Final answer
    x = 7,320

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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.