Home / 13,583.38-20,372.78-3,720.92

Finding the Fourth Proportional to 13,583.38, 20,372.78 and 3,720.92

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Solution

The fourth proportional to 13,583.38, 20,372.78 and 3,720.92 is: 5,580.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.38 : 20,372.78 = 3,720.92 : x
  2. Step 2: Convert to fraction form
    13,583.38/20,372.78 = 3,720.92/x
  3. Step 3: Cross multiply
    13,583.38x = 20,372.78 × 3,720.92
  4. Step 4: Simplify right side
    13,583.38x = 75,805,484.56
  5. Step 5: Solve for x
    x = 75,805,484.56/13,583.38
  6. Step 6: Final answer
    x = 5,580.75

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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.