Home / 13,491.92-18,538.42-11,003.60

Finding the Fourth Proportional to 13,491.92, 18,538.42 and 11,003.60

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Solution

The fourth proportional to 13,491.92, 18,538.42 and 11,003.60 is: 15,119.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.92 : 18,538.42 = 11,003.60 : x
  2. Step 2: Convert to fraction form
    13,491.92/18,538.42 = 11,003.60/x
  3. Step 3: Cross multiply
    13,491.92x = 18,538.42 × 11,003.60
  4. Step 4: Simplify right side
    13,491.92x = 203,989,358.31
  5. Step 5: Solve for x
    x = 203,989,358.31/13,491.92
  6. Step 6: Final answer
    x = 15,119.37

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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.