Home / 13,193.05-18,205.57-7,224.79

Finding the Fourth Proportional to 13,193.05, 18,205.57 and 7,224.79

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Solution

The fourth proportional to 13,193.05, 18,205.57 and 7,224.79 is: 9,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,193.05 : 18,205.57 = 7,224.79 : x
  2. Step 2: Convert to fraction form
    13,193.05/18,205.57 = 7,224.79/x
  3. Step 3: Cross multiply
    13,193.05x = 18,205.57 × 7,224.79
  4. Step 4: Simplify right side
    13,193.05x = 131,531,383.60
  5. Step 5: Solve for x
    x = 131,531,383.60/13,193.05
  6. Step 6: Final answer
    x = 9,969.75

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Double scale
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Similar ratio
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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.