Home / 13,115.56-17,997.65-11,927.56

Finding the Fourth Proportional to 13,115.56, 17,997.65 and 11,927.56

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Solution

The fourth proportional to 13,115.56, 17,997.65 and 11,927.56 is: 16,367.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.56 : 17,997.65 = 11,927.56 : x
  2. Step 2: Convert to fraction form
    13,115.56/17,997.65 = 11,927.56/x
  3. Step 3: Cross multiply
    13,115.56x = 17,997.65 × 11,927.56
  4. Step 4: Simplify right side
    13,115.56x = 214,668,050.23
  5. Step 5: Solve for x
    x = 214,668,050.23/13,115.56
  6. Step 6: Final answer
    x = 16,367.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.