Home / 11,942.88-16,479.96-6,637.32

Finding the Fourth Proportional to 11,942.88, 16,479.96 and 6,637.32

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Solution

The fourth proportional to 11,942.88, 16,479.96 and 6,637.32 is: 9,158.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.88 : 16,479.96 = 6,637.32 : x
  2. Step 2: Convert to fraction form
    11,942.88/16,479.96 = 6,637.32/x
  3. Step 3: Cross multiply
    11,942.88x = 16,479.96 × 6,637.32
  4. Step 4: Simplify right side
    11,942.88x = 109,382,768.11
  5. Step 5: Solve for x
    x = 109,382,768.11/11,942.88
  6. Step 6: Final answer
    x = 9,158.83

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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.