Home / 13,321.77-18,383.25-7,353.28

Finding the Fourth Proportional to 13,321.77, 18,383.25 and 7,353.28

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Solution

The fourth proportional to 13,321.77, 18,383.25 and 7,353.28 is: 10,147.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.77 : 18,383.25 = 7,353.28 : x
  2. Step 2: Convert to fraction form
    13,321.77/18,383.25 = 7,353.28/x
  3. Step 3: Cross multiply
    13,321.77x = 18,383.25 × 7,353.28
  4. Step 4: Simplify right side
    13,321.77x = 135,177,184.56
  5. Step 5: Solve for x
    x = 135,177,184.56/13,321.77
  6. Step 6: Final answer
    x = 10,147.09

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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.