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Finding the Fourth Proportional to 12,524, 18,786 and 3,290

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Solution

The fourth proportional to 12,524, 18,786 and 3,290 is: 4,935

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,524 : 18,786 = 3,290 : x
  2. Step 2: Convert to fraction form
    12,524/18,786 = 3,290/x
  3. Step 3: Cross multiply
    12,524x = 18,786 × 3,290
  4. Step 4: Simplify right side
    12,524x = 61,805,940
  5. Step 5: Solve for x
    x = 61,805,940/12,524
  6. Step 6: Final answer
    x = 4,935

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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.