Home / 18,215.05-27,262.42-12,867.83

Finding the Fourth Proportional to 18,215.05, 27,262.42 and 12,867.83

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Solution

The fourth proportional to 18,215.05, 27,262.42 and 12,867.83 is: 19,259.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.05 : 27,262.42 = 12,867.83 : x
  2. Step 2: Convert to fraction form
    18,215.05/27,262.42 = 12,867.83/x
  3. Step 3: Cross multiply
    18,215.05x = 27,262.42 × 12,867.83
  4. Step 4: Simplify right side
    18,215.05x = 350,808,185.95
  5. Step 5: Solve for x
    x = 350,808,185.95/18,215.05
  6. Step 6: Final answer
    x = 19,259.25

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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.