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Finding the Fourth Proportional to 18,370, 25,352.73 and 10,305.88

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Solution

The fourth proportional to 18,370, 25,352.73 and 10,305.88 is: 14,223.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,370 : 25,352.73 = 10,305.88 : x
  2. Step 2: Convert to fraction form
    18,370/25,352.73 = 10,305.88/x
  3. Step 3: Cross multiply
    18,370x = 25,352.73 × 10,305.88
  4. Step 4: Simplify right side
    18,370x = 261,282,193.05
  5. Step 5: Solve for x
    x = 261,282,193.05/18,370
  6. Step 6: Final answer
    x = 14,223.31

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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.