Home / 11,776.32-17,663.31-3,878.60

Finding the Fourth Proportional to 11,776.32, 17,663.31 and 3,878.60

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Solution

The fourth proportional to 11,776.32, 17,663.31 and 3,878.60 is: 5,817.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,776.32 : 17,663.31 = 3,878.60 : x
  2. Step 2: Convert to fraction form
    11,776.32/17,663.31 = 3,878.60/x
  3. Step 3: Cross multiply
    11,776.32x = 17,663.31 × 3,878.60
  4. Step 4: Simplify right side
    11,776.32x = 68,508,825.85
  5. Step 5: Solve for x
    x = 68,508,825.85/11,776.32
  6. Step 6: Final answer
    x = 5,817.51

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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.