Home / 11,791.56-16,272.90-6,486.28

Finding the Fourth Proportional to 11,791.56, 16,272.90 and 6,486.28

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Solution

The fourth proportional to 11,791.56, 16,272.90 and 6,486.28 is: 8,951.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.56 : 16,272.90 = 6,486.28 : x
  2. Step 2: Convert to fraction form
    11,791.56/16,272.90 = 6,486.28/x
  3. Step 3: Cross multiply
    11,791.56x = 16,272.90 × 6,486.28
  4. Step 4: Simplify right side
    11,791.56x = 105,550,585.81
  5. Step 5: Solve for x
    x = 105,550,585.81/11,791.56
  6. Step 6: Final answer
    x = 8,951.37

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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.