Home / 13,608.48-18,791.52-8,581.68

Finding the Fourth Proportional to 13,608.48, 18,791.52 and 8,581.68

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Solution

The fourth proportional to 13,608.48, 18,791.52 and 8,581.68 is: 11,850.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.48 : 18,791.52 = 8,581.68 : x
  2. Step 2: Convert to fraction form
    13,608.48/18,791.52 = 8,581.68/x
  3. Step 3: Cross multiply
    13,608.48x = 18,791.52 × 8,581.68
  4. Step 4: Simplify right side
    13,608.48x = 161,262,811.35
  5. Step 5: Solve for x
    x = 161,262,811.35/13,608.48
  6. Step 6: Final answer
    x = 11,850.17

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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.