Home / 13,614.55-20,427.69-7,379.03

Finding the Fourth Proportional to 13,614.55, 20,427.69 and 7,379.03

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Solution

The fourth proportional to 13,614.55, 20,427.69 and 7,379.03 is: 11,071.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.55 : 20,427.69 = 7,379.03 : x
  2. Step 2: Convert to fraction form
    13,614.55/20,427.69 = 7,379.03/x
  3. Step 3: Cross multiply
    13,614.55x = 20,427.69 × 7,379.03
  4. Step 4: Simplify right side
    13,614.55x = 150,736,616.08
  5. Step 5: Solve for x
    x = 150,736,616.08/13,614.55
  6. Step 6: Final answer
    x = 11,071.73

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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.