Home / 16,791.20-23,161.65-12,081.86

Finding the Fourth Proportional to 16,791.20, 23,161.65 and 12,081.86

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Solution

The fourth proportional to 16,791.20, 23,161.65 and 12,081.86 is: 16,665.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,791.20 : 23,161.65 = 12,081.86 : x
  2. Step 2: Convert to fraction form
    16,791.20/23,161.65 = 12,081.86/x
  3. Step 3: Cross multiply
    16,791.20x = 23,161.65 × 12,081.86
  4. Step 4: Simplify right side
    16,791.20x = 279,835,812.67
  5. Step 5: Solve for x
    x = 279,835,812.67/16,791.20
  6. Step 6: Final answer
    x = 16,665.62

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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.