Home / 15,930.27-21,984.34-8,760.73

Finding the Fourth Proportional to 15,930.27, 21,984.34 and 8,760.73

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Solution

The fourth proportional to 15,930.27, 21,984.34 and 8,760.73 is: 12,090.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,930.27 : 21,984.34 = 8,760.73 : x
  2. Step 2: Convert to fraction form
    15,930.27/21,984.34 = 8,760.73/x
  3. Step 3: Cross multiply
    15,930.27x = 21,984.34 × 8,760.73
  4. Step 4: Simplify right side
    15,930.27x = 192,598,866.97
  5. Step 5: Solve for x
    x = 192,598,866.97/15,930.27
  6. Step 6: Final answer
    x = 12,090.12

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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.