Home / 18,521.49-27,786.48-5,374.92

Finding the Fourth Proportional to 18,521.49, 27,786.48 and 5,374.92

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Solution

The fourth proportional to 18,521.49, 27,786.48 and 5,374.92 is: 8,063.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.49 : 27,786.48 = 5,374.92 : x
  2. Step 2: Convert to fraction form
    18,521.49/27,786.48 = 5,374.92/x
  3. Step 3: Cross multiply
    18,521.49x = 27,786.48 × 5,374.92
  4. Step 4: Simplify right side
    18,521.49x = 149,350,107.08
  5. Step 5: Solve for x
    x = 149,350,107.08/18,521.49
  6. Step 6: Final answer
    x = 8,063.61

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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.