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Finding the Fourth Proportional to 18,253.08, 25,189.32 and 9,869.58

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Solution

The fourth proportional to 18,253.08, 25,189.32 and 9,869.58 is: 13,620.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,253.08 : 25,189.32 = 9,869.58 : x
  2. Step 2: Convert to fraction form
    18,253.08/25,189.32 = 9,869.58/x
  3. Step 3: Cross multiply
    18,253.08x = 25,189.32 × 9,869.58
  4. Step 4: Simplify right side
    18,253.08x = 248,608,008.89
  5. Step 5: Solve for x
    x = 248,608,008.89/18,253.08
  6. Step 6: Final answer
    x = 13,620.06

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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.