Home / 13,195.15-18,217.80-11,776.39

Finding the Fourth Proportional to 13,195.15, 18,217.80 and 11,776.39

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Solution

The fourth proportional to 13,195.15, 18,217.80 and 11,776.39 is: 16,259.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.15 : 18,217.80 = 11,776.39 : x
  2. Step 2: Convert to fraction form
    13,195.15/18,217.80 = 11,776.39/x
  3. Step 3: Cross multiply
    13,195.15x = 18,217.80 × 11,776.39
  4. Step 4: Simplify right side
    13,195.15x = 214,539,917.74
  5. Step 5: Solve for x
    x = 214,539,917.74/13,195.15
  6. Step 6: Final answer
    x = 16,259.00

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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.