Home / 13,305.31-19,939.42-6,723.81

Finding the Fourth Proportional to 13,305.31, 19,939.42 and 6,723.81

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Solution

The fourth proportional to 13,305.31, 19,939.42 and 6,723.81 is: 10,076.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.31 : 19,939.42 = 6,723.81 : x
  2. Step 2: Convert to fraction form
    13,305.31/19,939.42 = 6,723.81/x
  3. Step 3: Cross multiply
    13,305.31x = 19,939.42 × 6,723.81
  4. Step 4: Simplify right side
    13,305.31x = 134,068,837.97
  5. Step 5: Solve for x
    x = 134,068,837.97/13,305.31
  6. Step 6: Final answer
    x = 10,076.34

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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.