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Finding the Fourth Proportional to 18,306.51, 25,254.99 and 10,739.49

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Solution

The fourth proportional to 18,306.51, 25,254.99 and 10,739.49 is: 14,815.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.51 : 25,254.99 = 10,739.49 : x
  2. Step 2: Convert to fraction form
    18,306.51/25,254.99 = 10,739.49/x
  3. Step 3: Cross multiply
    18,306.51x = 25,254.99 × 10,739.49
  4. Step 4: Simplify right side
    18,306.51x = 271,225,712.56
  5. Step 5: Solve for x
    x = 271,225,712.56/18,306.51
  6. Step 6: Final answer
    x = 14,815.81

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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.