Home / 13,131.72-18,066.24-11,444.76

Finding the Fourth Proportional to 13,131.72, 18,066.24 and 11,444.76

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Solution

The fourth proportional to 13,131.72, 18,066.24 and 11,444.76 is: 15,745.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,131.72 : 18,066.24 = 11,444.76 : x
  2. Step 2: Convert to fraction form
    13,131.72/18,066.24 = 11,444.76/x
  3. Step 3: Cross multiply
    13,131.72x = 18,066.24 × 11,444.76
  4. Step 4: Simplify right side
    13,131.72x = 206,763,780.90
  5. Step 5: Solve for x
    x = 206,763,780.90/13,131.72
  6. Step 6: Final answer
    x = 15,745.37

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Half scale
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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.