Home / 13,489.92-18,535.68-11,001.60

Finding the Fourth Proportional to 13,489.92, 18,535.68 and 11,001.60

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Solution

The fourth proportional to 13,489.92, 18,535.68 and 11,001.60 is: 15,116.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.92 : 18,535.68 = 11,001.60 : x
  2. Step 2: Convert to fraction form
    13,489.92/18,535.68 = 11,001.60/x
  3. Step 3: Cross multiply
    13,489.92x = 18,535.68 × 11,001.60
  4. Step 4: Simplify right side
    13,489.92x = 203,922,137.09
  5. Step 5: Solve for x
    x = 203,922,137.09/13,489.92
  6. Step 6: Final answer
    x = 15,116.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.