Home / 11,739.71-17,612.46-3,419.79

Finding the Fourth Proportional to 11,739.71, 17,612.46 and 3,419.79

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Solution

The fourth proportional to 11,739.71, 17,612.46 and 3,419.79 is: 5,130.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,739.71 : 17,612.46 = 3,419.79 : x
  2. Step 2: Convert to fraction form
    11,739.71/17,612.46 = 3,419.79/x
  3. Step 3: Cross multiply
    11,739.71x = 17,612.46 × 3,419.79
  4. Step 4: Simplify right side
    11,739.71x = 60,231,006.76
  5. Step 5: Solve for x
    x = 60,231,006.76/11,739.71
  6. Step 6: Final answer
    x = 5,130.54

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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.