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Finding the Fourth Proportional to 18,753.56, 25,879.80 and 10,370

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Solution

The fourth proportional to 18,753.56, 25,879.80 and 10,370 is: 14,310.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.56 : 25,879.80 = 10,370 : x
  2. Step 2: Convert to fraction form
    18,753.56/25,879.80 = 10,370/x
  3. Step 3: Cross multiply
    18,753.56x = 25,879.80 × 10,370
  4. Step 4: Simplify right side
    18,753.56x = 268,373,526
  5. Step 5: Solve for x
    x = 268,373,526/18,753.56
  6. Step 6: Final answer
    x = 14,310.54

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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.