Home / 11,942.56-16,479.48-6,636.52

Finding the Fourth Proportional to 11,942.56, 16,479.48 and 6,636.52

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Solution

The fourth proportional to 11,942.56, 16,479.48 and 6,636.52 is: 9,157.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.56 : 16,479.48 = 6,636.52 : x
  2. Step 2: Convert to fraction form
    11,942.56/16,479.48 = 6,636.52/x
  3. Step 3: Cross multiply
    11,942.56x = 16,479.48 × 6,636.52
  4. Step 4: Simplify right side
    11,942.56x = 109,366,398.61
  5. Step 5: Solve for x
    x = 109,366,398.61/11,942.56
  6. Step 6: Final answer
    x = 9,157.70

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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.