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Finding the Fourth Proportional to 14,482.65, 21,687.20 and 12,136.48

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Solution

The fourth proportional to 14,482.65, 21,687.20 and 12,136.48 is: 18,173.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,482.65 : 21,687.20 = 12,136.48 : x
  2. Step 2: Convert to fraction form
    14,482.65/21,687.20 = 12,136.48/x
  3. Step 3: Cross multiply
    14,482.65x = 21,687.20 × 12,136.48
  4. Step 4: Simplify right side
    14,482.65x = 263,206,269.06
  5. Step 5: Solve for x
    x = 263,206,269.06/14,482.65
  6. Step 6: Final answer
    x = 18,173.90

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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.