Home / 12,360.56-18,540.88-5,791.36

Finding the Fourth Proportional to 12,360.56, 18,540.88 and 5,791.36

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Solution

The fourth proportional to 12,360.56, 18,540.88 and 5,791.36 is: 8,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,360.56 : 18,540.88 = 5,791.36 : x
  2. Step 2: Convert to fraction form
    12,360.56/18,540.88 = 5,791.36/x
  3. Step 3: Cross multiply
    12,360.56x = 18,540.88 × 5,791.36
  4. Step 4: Simplify right side
    12,360.56x = 107,376,910.80
  5. Step 5: Solve for x
    x = 107,376,910.80/12,360.56
  6. Step 6: Final answer
    x = 8,687.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.