Home / 13,583.80-20,389.67-8,322.44

Finding the Fourth Proportional to 13,583.80, 20,389.67 and 8,322.44

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Solution

The fourth proportional to 13,583.80, 20,389.67 and 8,322.44 is: 12,492.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.80 : 20,389.67 = 8,322.44 : x
  2. Step 2: Convert to fraction form
    13,583.80/20,389.67 = 8,322.44/x
  3. Step 3: Cross multiply
    13,583.80x = 20,389.67 × 8,322.44
  4. Step 4: Simplify right side
    13,583.80x = 169,691,763.58
  5. Step 5: Solve for x
    x = 169,691,763.58/13,583.80
  6. Step 6: Final answer
    x = 12,492.22

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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.