Home / 13,125.35-18,101.82-11,091.22

Finding the Fourth Proportional to 13,125.35, 18,101.82 and 11,091.22

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Solution

The fourth proportional to 13,125.35, 18,101.82 and 11,091.22 is: 15,296.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.35 : 18,101.82 = 11,091.22 : x
  2. Step 2: Convert to fraction form
    13,125.35/18,101.82 = 11,091.22/x
  3. Step 3: Cross multiply
    13,125.35x = 18,101.82 × 11,091.22
  4. Step 4: Simplify right side
    13,125.35x = 200,771,222.77
  5. Step 5: Solve for x
    x = 200,771,222.77/13,125.35
  6. Step 6: Final answer
    x = 15,296.44

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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.