Home / 18,169.72-25,051.08-12,191.92

Finding the Fourth Proportional to 18,169.72, 25,051.08 and 12,191.92

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Solution

The fourth proportional to 18,169.72, 25,051.08 and 12,191.92 is: 16,809.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169.72 : 25,051.08 = 12,191.92 : x
  2. Step 2: Convert to fraction form
    18,169.72/25,051.08 = 12,191.92/x
  3. Step 3: Cross multiply
    18,169.72x = 25,051.08 × 12,191.92
  4. Step 4: Simplify right side
    18,169.72x = 305,420,763.27
  5. Step 5: Solve for x
    x = 305,420,763.27/18,169.72
  6. Step 6: Final answer
    x = 16,809.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.