Home / 21,096.56-29,112.09-11,664.50

Finding the Fourth Proportional to 21,096.56, 29,112.09 and 11,664.50

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Solution

The fourth proportional to 21,096.56, 29,112.09 and 11,664.50 is: 16,096.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096.56 : 29,112.09 = 11,664.50 : x
  2. Step 2: Convert to fraction form
    21,096.56/29,112.09 = 11,664.50/x
  3. Step 3: Cross multiply
    21,096.56x = 29,112.09 × 11,664.50
  4. Step 4: Simplify right side
    21,096.56x = 339,577,973.81
  5. Step 5: Solve for x
    x = 339,577,973.81/21,096.56
  6. Step 6: Final answer
    x = 16,096.37

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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.