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Finding the Fourth Proportional to 18,483.40, 27,725.10 and 6,171.40

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Solution

The fourth proportional to 18,483.40, 27,725.10 and 6,171.40 is: 9,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,483.40 : 27,725.10 = 6,171.40 : x
  2. Step 2: Convert to fraction form
    18,483.40/27,725.10 = 6,171.40/x
  3. Step 3: Cross multiply
    18,483.40x = 27,725.10 × 6,171.40
  4. Step 4: Simplify right side
    18,483.40x = 171,102,682.14
  5. Step 5: Solve for x
    x = 171,102,682.14/18,483.40
  6. Step 6: Final answer
    x = 9,257.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.