Home / 12,644.28-18,954.81-4,851.54

Finding the Fourth Proportional to 12,644.28, 18,954.81 and 4,851.54

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Solution

The fourth proportional to 12,644.28, 18,954.81 and 4,851.54 is: 7,272.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.28 : 18,954.81 = 4,851.54 : x
  2. Step 2: Convert to fraction form
    12,644.28/18,954.81 = 4,851.54/x
  3. Step 3: Cross multiply
    12,644.28x = 18,954.81 × 4,851.54
  4. Step 4: Simplify right side
    12,644.28x = 91,960,018.91
  5. Step 5: Solve for x
    x = 91,960,018.91/12,644.28
  6. Step 6: Final answer
    x = 7,272.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.