Home / 12,016.80-18,029.28-7,403.04

Finding the Fourth Proportional to 12,016.80, 18,029.28 and 7,403.04

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Solution

The fourth proportional to 12,016.80, 18,029.28 and 7,403.04 is: 11,107.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,016.80 : 18,029.28 = 7,403.04 : x
  2. Step 2: Convert to fraction form
    12,016.80/18,029.28 = 7,403.04/x
  3. Step 3: Cross multiply
    12,016.80x = 18,029.28 × 7,403.04
  4. Step 4: Simplify right side
    12,016.80x = 133,471,481.01
  5. Step 5: Solve for x
    x = 133,471,481.01/12,016.80
  6. Step 6: Final answer
    x = 11,107.07

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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.