Home / 14,619.88-21,878.79-11,956.60

Finding the Fourth Proportional to 14,619.88, 21,878.79 and 11,956.60

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Solution

The fourth proportional to 14,619.88, 21,878.79 and 11,956.60 is: 17,893.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,619.88 : 21,878.79 = 11,956.60 : x
  2. Step 2: Convert to fraction form
    14,619.88/21,878.79 = 11,956.60/x
  3. Step 3: Cross multiply
    14,619.88x = 21,878.79 × 11,956.60
  4. Step 4: Simplify right side
    14,619.88x = 261,595,940.51
  5. Step 5: Solve for x
    x = 261,595,940.51/14,619.88
  6. Step 6: Final answer
    x = 17,893.17

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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.