Home / 13,120.88-19,651.92-10,190.32

Finding the Fourth Proportional to 13,120.88, 19,651.92 and 10,190.32

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Solution

The fourth proportional to 13,120.88, 19,651.92 and 10,190.32 is: 15,262.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.88 : 19,651.92 = 10,190.32 : x
  2. Step 2: Convert to fraction form
    13,120.88/19,651.92 = 10,190.32/x
  3. Step 3: Cross multiply
    13,120.88x = 19,651.92 × 10,190.32
  4. Step 4: Simplify right side
    13,120.88x = 200,259,353.41
  5. Step 5: Solve for x
    x = 200,259,353.41/13,120.88
  6. Step 6: Final answer
    x = 15,262.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.