Home / 13,678.15-18,828.43-11,795.98

Finding the Fourth Proportional to 13,678.15, 18,828.43 and 11,795.98

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Solution

The fourth proportional to 13,678.15, 18,828.43 and 11,795.98 is: 16,237.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,678.15 : 18,828.43 = 11,795.98 : x
  2. Step 2: Convert to fraction form
    13,678.15/18,828.43 = 11,795.98/x
  3. Step 3: Cross multiply
    13,678.15x = 18,828.43 × 11,795.98
  4. Step 4: Simplify right side
    13,678.15x = 222,099,783.71
  5. Step 5: Solve for x
    x = 222,099,783.71/13,678.15
  6. Step 6: Final answer
    x = 16,237.56

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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.