Home / 11,693.36-16,136.22-6,388.10

Finding the Fourth Proportional to 11,693.36, 16,136.22 and 6,388.10

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Solution

The fourth proportional to 11,693.36, 16,136.22 and 6,388.10 is: 8,815.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,693.36 : 16,136.22 = 6,388.10 : x
  2. Step 2: Convert to fraction form
    11,693.36/16,136.22 = 6,388.10/x
  3. Step 3: Cross multiply
    11,693.36x = 16,136.22 × 6,388.10
  4. Step 4: Simplify right side
    11,693.36x = 103,079,786.98
  5. Step 5: Solve for x
    x = 103,079,786.98/11,693.36
  6. Step 6: Final answer
    x = 8,815.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.