Home / 14,121.36-21,168.26-6,723.83

Finding the Fourth Proportional to 14,121.36, 21,168.26 and 6,723.83

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Solution

The fourth proportional to 14,121.36, 21,168.26 and 6,723.83 is: 10,079.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.36 : 21,168.26 = 6,723.83 : x
  2. Step 2: Convert to fraction form
    14,121.36/21,168.26 = 6,723.83/x
  3. Step 3: Cross multiply
    14,121.36x = 21,168.26 × 6,723.83
  4. Step 4: Simplify right side
    14,121.36x = 142,331,851.37
  5. Step 5: Solve for x
    x = 142,331,851.37/14,121.36
  6. Step 6: Final answer
    x = 10,079.19

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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.