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Finding the Fourth Proportional to 10,791.86, 16,187.69 and 3,000.65

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Solution

The fourth proportional to 10,791.86, 16,187.69 and 3,000.65 is: 4,500.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.86 : 16,187.69 = 3,000.65 : x
  2. Step 2: Convert to fraction form
    10,791.86/16,187.69 = 3,000.65/x
  3. Step 3: Cross multiply
    10,791.86x = 16,187.69 × 3,000.65
  4. Step 4: Simplify right side
    10,791.86x = 48,573,592.00
  5. Step 5: Solve for x
    x = 48,573,592.00/10,791.86
  6. Step 6: Final answer
    x = 4,500.95

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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.