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Finding the Fourth Proportional to 14,814, 22,221 and 3,870

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Solution

The fourth proportional to 14,814, 22,221 and 3,870 is: 5,805

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,814 : 22,221 = 3,870 : x
  2. Step 2: Convert to fraction form
    14,814/22,221 = 3,870/x
  3. Step 3: Cross multiply
    14,814x = 22,221 × 3,870
  4. Step 4: Simplify right side
    14,814x = 85,995,270
  5. Step 5: Solve for x
    x = 85,995,270/14,814
  6. Step 6: Final answer
    x = 5,805

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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.