Home / 13,499.64-20,249.94-3,639.16

Finding the Fourth Proportional to 13,499.64, 20,249.94 and 3,639.16

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Solution

The fourth proportional to 13,499.64, 20,249.94 and 3,639.16 is: 5,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,499.64 : 20,249.94 = 3,639.16 : x
  2. Step 2: Convert to fraction form
    13,499.64/20,249.94 = 3,639.16/x
  3. Step 3: Cross multiply
    13,499.64x = 20,249.94 × 3,639.16
  4. Step 4: Simplify right side
    13,499.64x = 73,692,771.65
  5. Step 5: Solve for x
    x = 73,692,771.65/13,499.64
  6. Step 6: Final answer
    x = 5,458.87

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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.