Home / 11,932.72-17,905.38-8,672.80

Finding the Fourth Proportional to 11,932.72, 17,905.38 and 8,672.80

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Solution

The fourth proportional to 11,932.72, 17,905.38 and 8,672.80 is: 13,013.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,932.72 : 17,905.38 = 8,672.80 : x
  2. Step 2: Convert to fraction form
    11,932.72/17,905.38 = 8,672.80/x
  3. Step 3: Cross multiply
    11,932.72x = 17,905.38 × 8,672.80
  4. Step 4: Simplify right side
    11,932.72x = 155,289,779.66
  5. Step 5: Solve for x
    x = 155,289,779.66/11,932.72
  6. Step 6: Final answer
    x = 13,013.78

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1.5x scale

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.