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Finding the Fourth Proportional to 18,136.71, 25,028.19 and 10,179.68

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Solution

The fourth proportional to 18,136.71, 25,028.19 and 10,179.68 is: 14,047.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.71 : 25,028.19 = 10,179.68 : x
  2. Step 2: Convert to fraction form
    18,136.71/25,028.19 = 10,179.68/x
  3. Step 3: Cross multiply
    18,136.71x = 25,028.19 × 10,179.68
  4. Step 4: Simplify right side
    18,136.71x = 254,778,840.04
  5. Step 5: Solve for x
    x = 254,778,840.04/18,136.71
  6. Step 6: Final answer
    x = 14,047.69

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.