Home / 11,776.66-17,661.47-3,877.72

Finding the Fourth Proportional to 11,776.66, 17,661.47 and 3,877.72

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Solution

The fourth proportional to 11,776.66, 17,661.47 and 3,877.72 is: 5,815.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,776.66 : 17,661.47 = 3,877.72 : x
  2. Step 2: Convert to fraction form
    11,776.66/17,661.47 = 3,877.72/x
  3. Step 3: Cross multiply
    11,776.66x = 17,661.47 × 3,877.72
  4. Step 4: Simplify right side
    11,776.66x = 68,486,235.45
  5. Step 5: Solve for x
    x = 68,486,235.45/11,776.66
  6. Step 6: Final answer
    x = 5,815.42

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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.