Home / 11,693.48-16,137.36-6,388.64

Finding the Fourth Proportional to 11,693.48, 16,137.36 and 6,388.64

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Solution

The fourth proportional to 11,693.48, 16,137.36 and 6,388.64 is: 8,816.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,693.48 : 16,137.36 = 6,388.64 : x
  2. Step 2: Convert to fraction form
    11,693.48/16,137.36 = 6,388.64/x
  3. Step 3: Cross multiply
    11,693.48x = 16,137.36 × 6,388.64
  4. Step 4: Simplify right side
    11,693.48x = 103,095,823.93
  5. Step 5: Solve for x
    x = 103,095,823.93/11,693.48
  6. Step 6: Final answer
    x = 8,816.52

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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.