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Finding the Fourth Proportional to 9,969.88, 14,949.78 and 3,393.88

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Solution

The fourth proportional to 9,969.88, 14,949.78 and 3,393.88 is: 5,089.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,969.88 : 14,949.78 = 3,393.88 : x
  2. Step 2: Convert to fraction form
    9,969.88/14,949.78 = 3,393.88/x
  3. Step 3: Cross multiply
    9,969.88x = 14,949.78 × 3,393.88
  4. Step 4: Simplify right side
    9,969.88x = 50,737,759.35
  5. Step 5: Solve for x
    x = 50,737,759.35/9,969.88
  6. Step 6: Final answer
    x = 5,089.10

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1.5x scale

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.