Home / 11,917.33-16,440.77-7,198.88

Finding the Fourth Proportional to 11,917.33, 16,440.77 and 7,198.88

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Solution

The fourth proportional to 11,917.33, 16,440.77 and 7,198.88 is: 9,931.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.33 : 16,440.77 = 7,198.88 : x
  2. Step 2: Convert to fraction form
    11,917.33/16,440.77 = 7,198.88/x
  3. Step 3: Cross multiply
    11,917.33x = 16,440.77 × 7,198.88
  4. Step 4: Simplify right side
    11,917.33x = 118,355,066.13
  5. Step 5: Solve for x
    x = 118,355,066.13/11,917.33
  6. Step 6: Final answer
    x = 9,931.34

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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.