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Finding the Fourth Proportional to 18,148, 25,047.12 and 10,694.56

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Solution

The fourth proportional to 18,148, 25,047.12 and 10,694.56 is: 14,760.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148 : 25,047.12 = 10,694.56 : x
  2. Step 2: Convert to fraction form
    18,148/25,047.12 = 10,694.56/x
  3. Step 3: Cross multiply
    18,148x = 25,047.12 × 10,694.56
  4. Step 4: Simplify right side
    18,148x = 267,867,927.67
  5. Step 5: Solve for x
    x = 267,867,927.67/18,148
  6. Step 6: Final answer
    x = 14,760.19

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Why These Related Problems?

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