Home / 12,887.44-17,741.85-11,558.83

Finding the Fourth Proportional to 12,887.44, 17,741.85 and 11,558.83

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Solution

The fourth proportional to 12,887.44, 17,741.85 and 11,558.83 is: 15,912.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.44 : 17,741.85 = 11,558.83 : x
  2. Step 2: Convert to fraction form
    12,887.44/17,741.85 = 11,558.83/x
  3. Step 3: Cross multiply
    12,887.44x = 17,741.85 × 11,558.83
  4. Step 4: Simplify right side
    12,887.44x = 205,074,970.24
  5. Step 5: Solve for x
    x = 205,074,970.24/12,887.44
  6. Step 6: Final answer
    x = 15,912.78

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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.