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Finding the Fourth Proportional to 18,211.40, 25,132.92 and 10,252.88

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Solution

The fourth proportional to 18,211.40, 25,132.92 and 10,252.88 is: 14,149.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.40 : 25,132.92 = 10,252.88 : x
  2. Step 2: Convert to fraction form
    18,211.40/25,132.92 = 10,252.88/x
  3. Step 3: Cross multiply
    18,211.40x = 25,132.92 × 10,252.88
  4. Step 4: Simplify right side
    18,211.40x = 257,684,812.81
  5. Step 5: Solve for x
    x = 257,684,812.81/18,211.40
  6. Step 6: Final answer
    x = 14,149.64

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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.