Home / 12,622.82-18,945.94-6,387.22

Finding the Fourth Proportional to 12,622.82, 18,945.94 and 6,387.22

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Solution

The fourth proportional to 12,622.82, 18,945.94 and 6,387.22 is: 9,586.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.82 : 18,945.94 = 6,387.22 : x
  2. Step 2: Convert to fraction form
    12,622.82/18,945.94 = 6,387.22/x
  3. Step 3: Cross multiply
    12,622.82x = 18,945.94 × 6,387.22
  4. Step 4: Simplify right side
    12,622.82x = 121,011,886.89
  5. Step 5: Solve for x
    x = 121,011,886.89/12,622.82
  6. Step 6: Final answer
    x = 9,586.76

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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.