Home / 12,787.06-19,148.40-8,092.87

Finding the Fourth Proportional to 12,787.06, 19,148.40 and 8,092.87

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Solution

The fourth proportional to 12,787.06, 19,148.40 and 8,092.87 is: 12,118.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.06 : 19,148.40 = 8,092.87 : x
  2. Step 2: Convert to fraction form
    12,787.06/19,148.40 = 8,092.87/x
  3. Step 3: Cross multiply
    12,787.06x = 19,148.40 × 8,092.87
  4. Step 4: Simplify right side
    12,787.06x = 154,965,511.91
  5. Step 5: Solve for x
    x = 154,965,511.91/12,787.06
  6. Step 6: Final answer
    x = 12,118.93

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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.