Home / 13,601.08-20,399.46-5,284.90

Finding the Fourth Proportional to 13,601.08, 20,399.46 and 5,284.90

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Solution

The fourth proportional to 13,601.08, 20,399.46 and 5,284.90 is: 7,926.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.08 : 20,399.46 = 5,284.90 : x
  2. Step 2: Convert to fraction form
    13,601.08/20,399.46 = 5,284.90/x
  3. Step 3: Cross multiply
    13,601.08x = 20,399.46 × 5,284.90
  4. Step 4: Simplify right side
    13,601.08x = 107,809,106.15
  5. Step 5: Solve for x
    x = 107,809,106.15/13,601.08
  6. Step 6: Final answer
    x = 7,926.51

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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.