Home / 13,956-19,260.04-7,986.28

Finding the Fourth Proportional to 13,956, 19,260.04 and 7,986.28

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Solution

The fourth proportional to 13,956, 19,260.04 and 7,986.28 is: 11,021.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956 : 19,260.04 = 7,986.28 : x
  2. Step 2: Convert to fraction form
    13,956/19,260.04 = 7,986.28/x
  3. Step 3: Cross multiply
    13,956x = 19,260.04 × 7,986.28
  4. Step 4: Simplify right side
    13,956x = 153,816,072.25
  5. Step 5: Solve for x
    x = 153,816,072.25/13,956
  6. Step 6: Final answer
    x = 11,021.50

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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.