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Finding the Fourth Proportional to 12,610, 18,915 and 3,376

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Solution

The fourth proportional to 12,610, 18,915 and 3,376 is: 5,064

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610 : 18,915 = 3,376 : x
  2. Step 2: Convert to fraction form
    12,610/18,915 = 3,376/x
  3. Step 3: Cross multiply
    12,610x = 18,915 × 3,376
  4. Step 4: Simplify right side
    12,610x = 63,857,040
  5. Step 5: Solve for x
    x = 63,857,040/12,610
  6. Step 6: Final answer
    x = 5,064

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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.