Home / 11,894.82-16,414.96-7,178.18

Finding the Fourth Proportional to 11,894.82, 16,414.96 and 7,178.18

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Solution

The fourth proportional to 11,894.82, 16,414.96 and 7,178.18 is: 9,905.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,894.82 : 16,414.96 = 7,178.18 : x
  2. Step 2: Convert to fraction form
    11,894.82/16,414.96 = 7,178.18/x
  3. Step 3: Cross multiply
    11,894.82x = 16,414.96 × 7,178.18
  4. Step 4: Simplify right side
    11,894.82x = 117,829,537.57
  5. Step 5: Solve for x
    x = 117,829,537.57/11,894.82
  6. Step 6: Final answer
    x = 9,905.95

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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.