Home / 11,945.62-17,987.87-8,847.61

Finding the Fourth Proportional to 11,945.62, 17,987.87 and 8,847.61

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Solution

The fourth proportional to 11,945.62, 17,987.87 and 8,847.61 is: 13,322.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.62 : 17,987.87 = 8,847.61 : x
  2. Step 2: Convert to fraction form
    11,945.62/17,987.87 = 8,847.61/x
  3. Step 3: Cross multiply
    11,945.62x = 17,987.87 × 8,847.61
  4. Step 4: Simplify right side
    11,945.62x = 159,149,635.64
  5. Step 5: Solve for x
    x = 159,149,635.64/11,945.62
  6. Step 6: Final answer
    x = 13,322.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.