Home / 12,226.82-18,341.21-3,908.03

Finding the Fourth Proportional to 12,226.82, 18,341.21 and 3,908.03

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Solution

The fourth proportional to 12,226.82, 18,341.21 and 3,908.03 is: 5,862.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.82 : 18,341.21 = 3,908.03 : x
  2. Step 2: Convert to fraction form
    12,226.82/18,341.21 = 3,908.03/x
  3. Step 3: Cross multiply
    12,226.82x = 18,341.21 × 3,908.03
  4. Step 4: Simplify right side
    12,226.82x = 71,677,887.67
  5. Step 5: Solve for x
    x = 71,677,887.67/12,226.82
  6. Step 6: Final answer
    x = 5,862.35

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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.