Home / 11,221.66-15,485.16-6,185.60

Finding the Fourth Proportional to 11,221.66, 15,485.16 and 6,185.60

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Solution

The fourth proportional to 11,221.66, 15,485.16 and 6,185.60 is: 8,535.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.66 : 15,485.16 = 6,185.60 : x
  2. Step 2: Convert to fraction form
    11,221.66/15,485.16 = 6,185.60/x
  3. Step 3: Cross multiply
    11,221.66x = 15,485.16 × 6,185.60
  4. Step 4: Simplify right side
    11,221.66x = 95,785,005.70
  5. Step 5: Solve for x
    x = 95,785,005.70/11,221.66
  6. Step 6: Final answer
    x = 8,535.73

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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.