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Finding the Fourth Proportional to 14,015.54, 19,341.36 and 7,727.91

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Solution

The fourth proportional to 14,015.54, 19,341.36 and 7,727.91 is: 10,664.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.54 : 19,341.36 = 7,727.91 : x
  2. Step 2: Convert to fraction form
    14,015.54/19,341.36 = 7,727.91/x
  3. Step 3: Cross multiply
    14,015.54x = 19,341.36 × 7,727.91
  4. Step 4: Simplify right side
    14,015.54x = 149,468,289.36
  5. Step 5: Solve for x
    x = 149,468,289.36/14,015.54
  6. Step 6: Final answer
    x = 10,664.47

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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.