Home / 13,626.63-20,443.79-12,325.37

Finding the Fourth Proportional to 13,626.63, 20,443.79 and 12,325.37

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Solution

The fourth proportional to 13,626.63, 20,443.79 and 12,325.37 is: 18,491.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.63 : 20,443.79 = 12,325.37 : x
  2. Step 2: Convert to fraction form
    13,626.63/20,443.79 = 12,325.37/x
  3. Step 3: Cross multiply
    13,626.63x = 20,443.79 × 12,325.37
  4. Step 4: Simplify right side
    13,626.63x = 251,977,204.55
  5. Step 5: Solve for x
    x = 251,977,204.55/13,626.63
  6. Step 6: Final answer
    x = 18,491.53

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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.