Home / 11,076.94-15,278.79-8,834.86

Finding the Fourth Proportional to 11,076.94, 15,278.79 and 8,834.86

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Solution

The fourth proportional to 11,076.94, 15,278.79 and 8,834.86 is: 12,186.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,076.94 : 15,278.79 = 8,834.86 : x
  2. Step 2: Convert to fraction form
    11,076.94/15,278.79 = 8,834.86/x
  3. Step 3: Cross multiply
    11,076.94x = 15,278.79 × 8,834.86
  4. Step 4: Simplify right side
    11,076.94x = 134,985,970.62
  5. Step 5: Solve for x
    x = 134,985,970.62/11,076.94
  6. Step 6: Final answer
    x = 12,186.21

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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.