Home / 13,509.94-20,251.06-5,617.03

Finding the Fourth Proportional to 13,509.94, 20,251.06 and 5,617.03

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Solution

The fourth proportional to 13,509.94, 20,251.06 and 5,617.03 is: 8,419.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.94 : 20,251.06 = 5,617.03 : x
  2. Step 2: Convert to fraction form
    13,509.94/20,251.06 = 5,617.03/x
  3. Step 3: Cross multiply
    13,509.94x = 20,251.06 × 5,617.03
  4. Step 4: Simplify right side
    13,509.94x = 113,750,811.55
  5. Step 5: Solve for x
    x = 113,750,811.55/13,509.94
  6. Step 6: Final answer
    x = 8,419.79

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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.