Home / 13,443.90-20,169.45-11,993.10

Finding the Fourth Proportional to 13,443.90, 20,169.45 and 11,993.10

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Solution

The fourth proportional to 13,443.90, 20,169.45 and 11,993.10 is: 17,992.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.90 : 20,169.45 = 11,993.10 : x
  2. Step 2: Convert to fraction form
    13,443.90/20,169.45 = 11,993.10/x
  3. Step 3: Cross multiply
    13,443.90x = 20,169.45 × 11,993.10
  4. Step 4: Simplify right side
    13,443.90x = 241,894,230.80
  5. Step 5: Solve for x
    x = 241,894,230.80/13,443.90
  6. Step 6: Final answer
    x = 17,992.86

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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.