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Finding the Fourth Proportional to 9,990, 14,985 and 2,694

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Solution

The fourth proportional to 9,990, 14,985 and 2,694 is: 4,041

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990 : 14,985 = 2,694 : x
  2. Step 2: Convert to fraction form
    9,990/14,985 = 2,694/x
  3. Step 3: Cross multiply
    9,990x = 14,985 × 2,694
  4. Step 4: Simplify right side
    9,990x = 40,369,590
  5. Step 5: Solve for x
    x = 40,369,590/9,990
  6. Step 6: Final answer
    x = 4,041

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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.