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Finding the Fourth Proportional to 14,614, 21,921 and 4,886

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Solution

The fourth proportional to 14,614, 21,921 and 4,886 is: 7,329

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,614 : 21,921 = 4,886 : x
  2. Step 2: Convert to fraction form
    14,614/21,921 = 4,886/x
  3. Step 3: Cross multiply
    14,614x = 21,921 × 4,886
  4. Step 4: Simplify right side
    14,614x = 107,106,006
  5. Step 5: Solve for x
    x = 107,106,006/14,614
  6. Step 6: Final answer
    x = 7,329

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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.