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Finding the Fourth Proportional to 18,354.60, 27,532.95 and 5,205.94

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Solution

The fourth proportional to 18,354.60, 27,532.95 and 5,205.94 is: 7,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.60 : 27,532.95 = 5,205.94 : x
  2. Step 2: Convert to fraction form
    18,354.60/27,532.95 = 5,205.94/x
  3. Step 3: Cross multiply
    18,354.60x = 27,532.95 × 5,205.94
  4. Step 4: Simplify right side
    18,354.60x = 143,334,797.37
  5. Step 5: Solve for x
    x = 143,334,797.37/18,354.60
  6. Step 6: Final answer
    x = 7,809.20

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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.