Home / 13,653.36-20,485.44-6,723

Finding the Fourth Proportional to 13,653.36, 20,485.44 and 6,723

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Solution

The fourth proportional to 13,653.36, 20,485.44 and 6,723 is: 10,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.36 : 20,485.44 = 6,723 : x
  2. Step 2: Convert to fraction form
    13,653.36/20,485.44 = 6,723/x
  3. Step 3: Cross multiply
    13,653.36x = 20,485.44 × 6,723
  4. Step 4: Simplify right side
    13,653.36x = 137,723,613.12
  5. Step 5: Solve for x
    x = 137,723,613.12/13,653.36
  6. Step 6: Final answer
    x = 10,087.16

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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.