Home / 11,076.80-16,634.40-7,812.80

Finding the Fourth Proportional to 11,076.80, 16,634.40 and 7,812.80

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Solution

The fourth proportional to 11,076.80, 16,634.40 and 7,812.80 is: 11,732.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,076.80 : 16,634.40 = 7,812.80 : x
  2. Step 2: Convert to fraction form
    11,076.80/16,634.40 = 7,812.80/x
  3. Step 3: Cross multiply
    11,076.80x = 16,634.40 × 7,812.80
  4. Step 4: Simplify right side
    11,076.80x = 129,961,240.32
  5. Step 5: Solve for x
    x = 129,961,240.32/11,076.80
  6. Step 6: Final answer
    x = 11,732.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.