Home / 20,182.88-27,853.94-11,687.74

Finding the Fourth Proportional to 20,182.88, 27,853.94 and 11,687.74

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Solution

The fourth proportional to 20,182.88, 27,853.94 and 11,687.74 is: 16,129.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.88 : 27,853.94 = 11,687.74 : x
  2. Step 2: Convert to fraction form
    20,182.88/27,853.94 = 11,687.74/x
  3. Step 3: Cross multiply
    20,182.88x = 27,853.94 × 11,687.74
  4. Step 4: Simplify right side
    20,182.88x = 325,549,608.70
  5. Step 5: Solve for x
    x = 325,549,608.70/20,182.88
  6. Step 6: Final answer
    x = 16,129.99

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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.