Home / 18,521.62-27,754.37-12,259.20

Finding the Fourth Proportional to 18,521.62, 27,754.37 and 12,259.20

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Solution

The fourth proportional to 18,521.62, 27,754.37 and 12,259.20 is: 18,370.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.62 : 27,754.37 = 12,259.20 : x
  2. Step 2: Convert to fraction form
    18,521.62/27,754.37 = 12,259.20/x
  3. Step 3: Cross multiply
    18,521.62x = 27,754.37 × 12,259.20
  4. Step 4: Simplify right side
    18,521.62x = 340,246,282.65
  5. Step 5: Solve for x
    x = 340,246,282.65/18,521.62
  6. Step 6: Final answer
    x = 18,370.22

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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.