Home / 13,418.76-20,118.96-6,832.20

Finding the Fourth Proportional to 13,418.76, 20,118.96 and 6,832.20

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Solution

The fourth proportional to 13,418.76, 20,118.96 and 6,832.20 is: 10,243.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.76 : 20,118.96 = 6,832.20 : x
  2. Step 2: Convert to fraction form
    13,418.76/20,118.96 = 6,832.20/x
  3. Step 3: Cross multiply
    13,418.76x = 20,118.96 × 6,832.20
  4. Step 4: Simplify right side
    13,418.76x = 137,456,758.51
  5. Step 5: Solve for x
    x = 137,456,758.51/13,418.76
  6. Step 6: Final answer
    x = 10,243.63

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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.