Home / 13,551.57-20,322.50-5,757.75

Finding the Fourth Proportional to 13,551.57, 20,322.50 and 5,757.75

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Solution

The fourth proportional to 13,551.57, 20,322.50 and 5,757.75 is: 8,634.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.57 : 20,322.50 = 5,757.75 : x
  2. Step 2: Convert to fraction form
    13,551.57/20,322.50 = 5,757.75/x
  3. Step 3: Cross multiply
    13,551.57x = 20,322.50 × 5,757.75
  4. Step 4: Simplify right side
    13,551.57x = 117,011,845.59
  5. Step 5: Solve for x
    x = 117,011,845.59/13,551.57
  6. Step 6: Final answer
    x = 8,634.56

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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.