Home / 11,791.40-16,273.11-6,487.19

Finding the Fourth Proportional to 11,791.40, 16,273.11 and 6,487.19

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Solution

The fourth proportional to 11,791.40, 16,273.11 and 6,487.19 is: 8,952.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.40 : 16,273.11 = 6,487.19 : x
  2. Step 2: Convert to fraction form
    11,791.40/16,273.11 = 6,487.19/x
  3. Step 3: Cross multiply
    11,791.40x = 16,273.11 × 6,487.19
  4. Step 4: Simplify right side
    11,791.40x = 105,566,675.10
  5. Step 5: Solve for x
    x = 105,566,675.10/11,791.40
  6. Step 6: Final answer
    x = 8,952.86

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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.