Home / 13,321.08-18,383.28-7,353

Finding the Fourth Proportional to 13,321.08, 18,383.28 and 7,353

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Solution

The fourth proportional to 13,321.08, 18,383.28 and 7,353 is: 10,147.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.08 : 18,383.28 = 7,353 : x
  2. Step 2: Convert to fraction form
    13,321.08/18,383.28 = 7,353/x
  3. Step 3: Cross multiply
    13,321.08x = 18,383.28 × 7,353
  4. Step 4: Simplify right side
    13,321.08x = 135,172,257.84
  5. Step 5: Solve for x
    x = 135,172,257.84/13,321.08
  6. Step 6: Final answer
    x = 10,147.24

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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.