Home / 11,939.28-16,475.72-6,634.44

Finding the Fourth Proportional to 11,939.28, 16,475.72 and 6,634.44

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Solution

The fourth proportional to 11,939.28, 16,475.72 and 6,634.44 is: 9,155.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.28 : 16,475.72 = 6,634.44 : x
  2. Step 2: Convert to fraction form
    11,939.28/16,475.72 = 6,634.44/x
  3. Step 3: Cross multiply
    11,939.28x = 16,475.72 × 6,634.44
  4. Step 4: Simplify right side
    11,939.28x = 109,307,175.80
  5. Step 5: Solve for x
    x = 109,307,175.80/11,939.28
  6. Step 6: Final answer
    x = 9,155.26

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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.