Home / 13,821.29-20,734.88-4,461.84

Finding the Fourth Proportional to 13,821.29, 20,734.88 and 4,461.84

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Solution

The fourth proportional to 13,821.29, 20,734.88 and 4,461.84 is: 6,693.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.29 : 20,734.88 = 4,461.84 : x
  2. Step 2: Convert to fraction form
    13,821.29/20,734.88 = 4,461.84/x
  3. Step 3: Cross multiply
    13,821.29x = 20,734.88 × 4,461.84
  4. Step 4: Simplify right side
    13,821.29x = 92,515,716.98
  5. Step 5: Solve for x
    x = 92,515,716.98/13,821.29
  6. Step 6: Final answer
    x = 6,693.71

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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.