Home / 13,208.96-18,230.22-8,174.79

Finding the Fourth Proportional to 13,208.96, 18,230.22 and 8,174.79

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Solution

The fourth proportional to 13,208.96, 18,230.22 and 8,174.79 is: 11,282.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.96 : 18,230.22 = 8,174.79 : x
  2. Step 2: Convert to fraction form
    13,208.96/18,230.22 = 8,174.79/x
  3. Step 3: Cross multiply
    13,208.96x = 18,230.22 × 8,174.79
  4. Step 4: Simplify right side
    13,208.96x = 149,028,220.15
  5. Step 5: Solve for x
    x = 149,028,220.15/13,208.96
  6. Step 6: Final answer
    x = 11,282.36

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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.