Home / 15,940.61-21,998.51-8,771.27

Finding the Fourth Proportional to 15,940.61, 21,998.51 and 8,771.27

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Solution

The fourth proportional to 15,940.61, 21,998.51 and 8,771.27 is: 12,104.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,940.61 : 21,998.51 = 8,771.27 : x
  2. Step 2: Convert to fraction form
    15,940.61/21,998.51 = 8,771.27/x
  3. Step 3: Cross multiply
    15,940.61x = 21,998.51 × 8,771.27
  4. Step 4: Simplify right side
    15,940.61x = 192,954,782.74
  5. Step 5: Solve for x
    x = 192,954,782.74/15,940.61
  6. Step 6: Final answer
    x = 12,104.61

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1.5x scale

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.