Home / 11,894.48-16,414.16-7,178.96

Finding the Fourth Proportional to 11,894.48, 16,414.16 and 7,178.96

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Solution

The fourth proportional to 11,894.48, 16,414.16 and 7,178.96 is: 9,906.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,894.48 : 16,414.16 = 7,178.96 : x
  2. Step 2: Convert to fraction form
    11,894.48/16,414.16 = 7,178.96/x
  3. Step 3: Cross multiply
    11,894.48x = 16,414.16 × 7,178.96
  4. Step 4: Simplify right side
    11,894.48x = 117,836,598.07
  5. Step 5: Solve for x
    x = 117,836,598.07/11,894.48
  6. Step 6: Final answer
    x = 9,906.83

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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.