Home / 12,006.82-18,010.74-3,686.92

Finding the Fourth Proportional to 12,006.82, 18,010.74 and 3,686.92

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Solution

The fourth proportional to 12,006.82, 18,010.74 and 3,686.92 is: 5,530.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,006.82 : 18,010.74 = 3,686.92 : x
  2. Step 2: Convert to fraction form
    12,006.82/18,010.74 = 3,686.92/x
  3. Step 3: Cross multiply
    12,006.82x = 18,010.74 × 3,686.92
  4. Step 4: Simplify right side
    12,006.82x = 66,404,157.52
  5. Step 5: Solve for x
    x = 66,404,157.52/12,006.82
  6. Step 6: Final answer
    x = 5,530.54

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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.