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Finding the Fourth Proportional to 18,349.20, 27,502.20 and 9,579.60

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Solution

The fourth proportional to 18,349.20, 27,502.20 and 9,579.60 is: 14,358.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349.20 : 27,502.20 = 9,579.60 : x
  2. Step 2: Convert to fraction form
    18,349.20/27,502.20 = 9,579.60/x
  3. Step 3: Cross multiply
    18,349.20x = 27,502.20 × 9,579.60
  4. Step 4: Simplify right side
    18,349.20x = 263,460,075.12
  5. Step 5: Solve for x
    x = 263,460,075.12/18,349.20
  6. Step 6: Final answer
    x = 14,358.12

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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.