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Finding the Fourth Proportional to 18,193.96, 27,284.46 and 12,355.48

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Solution

The fourth proportional to 18,193.96, 27,284.46 and 12,355.48 is: 18,528.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,193.96 : 27,284.46 = 12,355.48 : x
  2. Step 2: Convert to fraction form
    18,193.96/27,284.46 = 12,355.48/x
  3. Step 3: Cross multiply
    18,193.96x = 27,284.46 × 12,355.48
  4. Step 4: Simplify right side
    18,193.96x = 337,112,599.84
  5. Step 5: Solve for x
    x = 337,112,599.84/18,193.96
  6. Step 6: Final answer
    x = 18,528.82

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1.5x scale

Why These Related Problems?

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