Home / 11,939.31-16,473.92-8,158.23

Finding the Fourth Proportional to 11,939.31, 16,473.92 and 8,158.23

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Solution

The fourth proportional to 11,939.31, 16,473.92 and 8,158.23 is: 11,256.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.31 : 16,473.92 = 8,158.23 : x
  2. Step 2: Convert to fraction form
    11,939.31/16,473.92 = 8,158.23/x
  3. Step 3: Cross multiply
    11,939.31x = 16,473.92 × 8,158.23
  4. Step 4: Simplify right side
    11,939.31x = 134,397,987.57
  5. Step 5: Solve for x
    x = 134,397,987.57/11,939.31
  6. Step 6: Final answer
    x = 11,256.76

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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.