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Finding the Fourth Proportional to 18,203.84, 25,121.52 and 10,654.58

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Solution

The fourth proportional to 18,203.84, 25,121.52 and 10,654.58 is: 14,703.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.84 : 25,121.52 = 10,654.58 : x
  2. Step 2: Convert to fraction form
    18,203.84/25,121.52 = 10,654.58/x
  3. Step 3: Cross multiply
    18,203.84x = 25,121.52 × 10,654.58
  4. Step 4: Simplify right side
    18,203.84x = 267,659,118.95
  5. Step 5: Solve for x
    x = 267,659,118.95/18,203.84
  6. Step 6: Final answer
    x = 14,703.45

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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.