Home / 13,102.07-18,083.42-8,327.58

Finding the Fourth Proportional to 13,102.07, 18,083.42 and 8,327.58

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Solution

The fourth proportional to 13,102.07, 18,083.42 and 8,327.58 is: 11,493.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.07 : 18,083.42 = 8,327.58 : x
  2. Step 2: Convert to fraction form
    13,102.07/18,083.42 = 8,327.58/x
  3. Step 3: Cross multiply
    13,102.07x = 18,083.42 × 8,327.58
  4. Step 4: Simplify right side
    13,102.07x = 150,591,048.50
  5. Step 5: Solve for x
    x = 150,591,048.50/13,102.07
  6. Step 6: Final answer
    x = 11,493.68

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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.