Home / 11,820.96-16,313.76-6,786

Finding the Fourth Proportional to 11,820.96, 16,313.76 and 6,786

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Solution

The fourth proportional to 11,820.96, 16,313.76 and 6,786 is: 9,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.96 : 16,313.76 = 6,786 : x
  2. Step 2: Convert to fraction form
    11,820.96/16,313.76 = 6,786/x
  3. Step 3: Cross multiply
    11,820.96x = 16,313.76 × 6,786
  4. Step 4: Simplify right side
    11,820.96x = 110,705,175.36
  5. Step 5: Solve for x
    x = 110,705,175.36/11,820.96
  6. Step 6: Final answer
    x = 9,365.16

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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.