Home / 13,126.23-18,110.34-8,091.27

Finding the Fourth Proportional to 13,126.23, 18,110.34 and 8,091.27

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Solution

The fourth proportional to 13,126.23, 18,110.34 and 8,091.27 is: 11,163.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126.23 : 18,110.34 = 8,091.27 : x
  2. Step 2: Convert to fraction form
    13,126.23/18,110.34 = 8,091.27/x
  3. Step 3: Cross multiply
    13,126.23x = 18,110.34 × 8,091.27
  4. Step 4: Simplify right side
    13,126.23x = 146,535,650.73
  5. Step 5: Solve for x
    x = 146,535,650.73/13,126.23
  6. Step 6: Final answer
    x = 11,163.57

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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.