Home / 11,917.62-16,436.25-11,260.98

Finding the Fourth Proportional to 11,917.62, 16,436.25 and 11,260.98

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Solution

The fourth proportional to 11,917.62, 16,436.25 and 11,260.98 is: 15,530.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.62 : 16,436.25 = 11,260.98 : x
  2. Step 2: Convert to fraction form
    11,917.62/16,436.25 = 11,260.98/x
  3. Step 3: Cross multiply
    11,917.62x = 16,436.25 × 11,260.98
  4. Step 4: Simplify right side
    11,917.62x = 185,088,282.53
  5. Step 5: Solve for x
    x = 185,088,282.53/11,917.62
  6. Step 6: Final answer
    x = 15,530.64

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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.