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Finding the Fourth Proportional to 18,840.44, 25,999.50 and 10,774

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Solution

The fourth proportional to 18,840.44, 25,999.50 and 10,774 is: 14,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.44 : 25,999.50 = 10,774 : x
  2. Step 2: Convert to fraction form
    18,840.44/25,999.50 = 10,774/x
  3. Step 3: Cross multiply
    18,840.44x = 25,999.50 × 10,774
  4. Step 4: Simplify right side
    18,840.44x = 280,118,613
  5. Step 5: Solve for x
    x = 280,118,613/18,840.44
  6. Step 6: Final answer
    x = 14,867.94

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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.