Home / 11,872.81-17,812.46-3,976.63

Finding the Fourth Proportional to 11,872.81, 17,812.46 and 3,976.63

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Solution

The fourth proportional to 11,872.81, 17,812.46 and 3,976.63 is: 5,966.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.81 : 17,812.46 = 3,976.63 : x
  2. Step 2: Convert to fraction form
    11,872.81/17,812.46 = 3,976.63/x
  3. Step 3: Cross multiply
    11,872.81x = 17,812.46 × 3,976.63
  4. Step 4: Simplify right side
    11,872.81x = 70,833,528.22
  5. Step 5: Solve for x
    x = 70,833,528.22/11,872.81
  6. Step 6: Final answer
    x = 5,966.03

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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.