Home / 9,991.21-14,982.15-2,968.64

Finding the Fourth Proportional to 9,991.21, 14,982.15 and 2,968.64

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Solution

The fourth proportional to 9,991.21, 14,982.15 and 2,968.64 is: 4,451.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991.21 : 14,982.15 = 2,968.64 : x
  2. Step 2: Convert to fraction form
    9,991.21/14,982.15 = 2,968.64/x
  3. Step 3: Cross multiply
    9,991.21x = 14,982.15 × 2,968.64
  4. Step 4: Simplify right side
    9,991.21x = 44,476,609.78
  5. Step 5: Solve for x
    x = 44,476,609.78/9,991.21
  6. Step 6: Final answer
    x = 4,451.58

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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.