Home / 12,766.54-19,138.12-5,371.53

Finding the Fourth Proportional to 12,766.54, 19,138.12 and 5,371.53

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Solution

The fourth proportional to 12,766.54, 19,138.12 and 5,371.53 is: 8,052.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,766.54 : 19,138.12 = 5,371.53 : x
  2. Step 2: Convert to fraction form
    12,766.54/19,138.12 = 5,371.53/x
  3. Step 3: Cross multiply
    12,766.54x = 19,138.12 × 5,371.53
  4. Step 4: Simplify right side
    12,766.54x = 102,800,985.72
  5. Step 5: Solve for x
    x = 102,800,985.72/12,766.54
  6. Step 6: Final answer
    x = 8,052.38

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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.