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Finding the Fourth Proportional to 18,775.29, 25,912.80 and 10,708.98

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Solution

The fourth proportional to 18,775.29, 25,912.80 and 10,708.98 is: 14,780.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.29 : 25,912.80 = 10,708.98 : x
  2. Step 2: Convert to fraction form
    18,775.29/25,912.80 = 10,708.98/x
  3. Step 3: Cross multiply
    18,775.29x = 25,912.80 × 10,708.98
  4. Step 4: Simplify right side
    18,775.29x = 277,499,656.94
  5. Step 5: Solve for x
    x = 277,499,656.94/18,775.29
  6. Step 6: Final answer
    x = 14,780.05

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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.