Home / 13,822.58-20,711.61-8,273.31

Finding the Fourth Proportional to 13,822.58, 20,711.61 and 8,273.31

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Solution

The fourth proportional to 13,822.58, 20,711.61 and 8,273.31 is: 12,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.58 : 20,711.61 = 8,273.31 : x
  2. Step 2: Convert to fraction form
    13,822.58/20,711.61 = 8,273.31/x
  3. Step 3: Cross multiply
    13,822.58x = 20,711.61 × 8,273.31
  4. Step 4: Simplify right side
    13,822.58x = 171,353,570.13
  5. Step 5: Solve for x
    x = 171,353,570.13/13,822.58
  6. Step 6: Final answer
    x = 12,396.65

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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.