Home / 12,706.91-19,051.85-4,906.61

Finding the Fourth Proportional to 12,706.91, 19,051.85 and 4,906.61

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Solution

The fourth proportional to 12,706.91, 19,051.85 and 4,906.61 is: 7,356.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,706.91 : 19,051.85 = 4,906.61 : x
  2. Step 2: Convert to fraction form
    12,706.91/19,051.85 = 4,906.61/x
  3. Step 3: Cross multiply
    12,706.91x = 19,051.85 × 4,906.61
  4. Step 4: Simplify right side
    12,706.91x = 93,479,877.94
  5. Step 5: Solve for x
    x = 93,479,877.94/12,706.91
  6. Step 6: Final answer
    x = 7,356.62

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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.