Home / 11,512.60-17,184.85-9,879.64

Finding the Fourth Proportional to 11,512.60, 17,184.85 and 9,879.64

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Solution

The fourth proportional to 11,512.60, 17,184.85 and 9,879.64 is: 14,747.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.60 : 17,184.85 = 9,879.64 : x
  2. Step 2: Convert to fraction form
    11,512.60/17,184.85 = 9,879.64/x
  3. Step 3: Cross multiply
    11,512.60x = 17,184.85 × 9,879.64
  4. Step 4: Simplify right side
    11,512.60x = 169,780,131.45
  5. Step 5: Solve for x
    x = 169,780,131.45/11,512.60
  6. Step 6: Final answer
    x = 14,747.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.