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Finding the Fourth Proportional to 14,144, 21,216 and 4,910

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Solution

The fourth proportional to 14,144, 21,216 and 4,910 is: 7,365

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144 : 21,216 = 4,910 : x
  2. Step 2: Convert to fraction form
    14,144/21,216 = 4,910/x
  3. Step 3: Cross multiply
    14,144x = 21,216 × 4,910
  4. Step 4: Simplify right side
    14,144x = 104,170,560
  5. Step 5: Solve for x
    x = 104,170,560/14,144
  6. Step 6: Final answer
    x = 7,365

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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.