Home / 11,720.01-16,169.60-6,680.60

Finding the Fourth Proportional to 11,720.01, 16,169.60 and 6,680.60

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Solution

The fourth proportional to 11,720.01, 16,169.60 and 6,680.60 is: 9,216.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.01 : 16,169.60 = 6,680.60 : x
  2. Step 2: Convert to fraction form
    11,720.01/16,169.60 = 6,680.60/x
  3. Step 3: Cross multiply
    11,720.01x = 16,169.60 × 6,680.60
  4. Step 4: Simplify right side
    11,720.01x = 108,022,629.76
  5. Step 5: Solve for x
    x = 108,022,629.76/11,720.01
  6. Step 6: Final answer
    x = 9,216.94

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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.