Home / 16,366.56-22,587.96-9,991.80

Finding the Fourth Proportional to 16,366.56, 22,587.96 and 9,991.80

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Solution

The fourth proportional to 16,366.56, 22,587.96 and 9,991.80 is: 13,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,366.56 : 22,587.96 = 9,991.80 : x
  2. Step 2: Convert to fraction form
    16,366.56/22,587.96 = 9,991.80/x
  3. Step 3: Cross multiply
    16,366.56x = 22,587.96 × 9,991.80
  4. Step 4: Simplify right side
    16,366.56x = 225,694,378.73
  5. Step 5: Solve for x
    x = 225,694,378.73/16,366.56
  6. Step 6: Final answer
    x = 13,789.97

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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.