Home / 13,749.38-20,623.82-4,389.33

Finding the Fourth Proportional to 13,749.38, 20,623.82 and 4,389.33

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Solution

The fourth proportional to 13,749.38, 20,623.82 and 4,389.33 is: 6,583.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.38 : 20,623.82 = 4,389.33 : x
  2. Step 2: Convert to fraction form
    13,749.38/20,623.82 = 4,389.33/x
  3. Step 3: Cross multiply
    13,749.38x = 20,623.82 × 4,389.33
  4. Step 4: Simplify right side
    13,749.38x = 90,524,729.89
  5. Step 5: Solve for x
    x = 90,524,729.89/13,749.38
  6. Step 6: Final answer
    x = 6,583.92

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1.5x scale

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.