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Finding the Fourth Proportional to 14,087.36, 19,440.86 and 7,714.22

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Solution

The fourth proportional to 14,087.36, 19,440.86 and 7,714.22 is: 10,645.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,087.36 : 19,440.86 = 7,714.22 : x
  2. Step 2: Convert to fraction form
    14,087.36/19,440.86 = 7,714.22/x
  3. Step 3: Cross multiply
    14,087.36x = 19,440.86 × 7,714.22
  4. Step 4: Simplify right side
    14,087.36x = 149,971,071.03
  5. Step 5: Solve for x
    x = 149,971,071.03/14,087.36
  6. Step 6: Final answer
    x = 10,645.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.