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Finding the Fourth Proportional to 14,434, 21,651 and 3,490

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Solution

The fourth proportional to 14,434, 21,651 and 3,490 is: 5,235

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,434 : 21,651 = 3,490 : x
  2. Step 2: Convert to fraction form
    14,434/21,651 = 3,490/x
  3. Step 3: Cross multiply
    14,434x = 21,651 × 3,490
  4. Step 4: Simplify right side
    14,434x = 75,561,990
  5. Step 5: Solve for x
    x = 75,561,990/14,434
  6. Step 6: Final answer
    x = 5,235

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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.