Home / 12,226.40-18,337.80-3,462.20

Finding the Fourth Proportional to 12,226.40, 18,337.80 and 3,462.20

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Solution

The fourth proportional to 12,226.40, 18,337.80 and 3,462.20 is: 5,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.40 : 18,337.80 = 3,462.20 : x
  2. Step 2: Convert to fraction form
    12,226.40/18,337.80 = 3,462.20/x
  3. Step 3: Cross multiply
    12,226.40x = 18,337.80 × 3,462.20
  4. Step 4: Simplify right side
    12,226.40x = 63,489,131.16
  5. Step 5: Solve for x
    x = 63,489,131.16/12,226.40
  6. Step 6: Final answer
    x = 5,192.79

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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.