Home / 13,222.58-19,815.84-6,653.27

Finding the Fourth Proportional to 13,222.58, 19,815.84 and 6,653.27

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Solution

The fourth proportional to 13,222.58, 19,815.84 and 6,653.27 is: 9,970.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.58 : 19,815.84 = 6,653.27 : x
  2. Step 2: Convert to fraction form
    13,222.58/19,815.84 = 6,653.27/x
  3. Step 3: Cross multiply
    13,222.58x = 19,815.84 × 6,653.27
  4. Step 4: Simplify right side
    13,222.58x = 131,840,183.34
  5. Step 5: Solve for x
    x = 131,840,183.34/13,222.58
  6. Step 6: Final answer
    x = 9,970.84

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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.