Home / 9,990.85-14,982.39-3,747.46

Finding the Fourth Proportional to 9,990.85, 14,982.39 and 3,747.46

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Solution

The fourth proportional to 9,990.85, 14,982.39 and 3,747.46 is: 5,619.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.85 : 14,982.39 = 3,747.46 : x
  2. Step 2: Convert to fraction form
    9,990.85/14,982.39 = 3,747.46/x
  3. Step 3: Cross multiply
    9,990.85x = 14,982.39 × 3,747.46
  4. Step 4: Simplify right side
    9,990.85x = 56,145,907.23
  5. Step 5: Solve for x
    x = 56,145,907.23/9,990.85
  6. Step 6: Final answer
    x = 5,619.73

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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.