Home / 13,130.20-19,674.66-8,192.44

Finding the Fourth Proportional to 13,130.20, 19,674.66 and 8,192.44

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Solution

The fourth proportional to 13,130.20, 19,674.66 and 8,192.44 is: 12,275.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.20 : 19,674.66 = 8,192.44 : x
  2. Step 2: Convert to fraction form
    13,130.20/19,674.66 = 8,192.44/x
  3. Step 3: Cross multiply
    13,130.20x = 19,674.66 × 8,192.44
  4. Step 4: Simplify right side
    13,130.20x = 161,183,471.57
  5. Step 5: Solve for x
    x = 161,183,471.57/13,130.20
  6. Step 6: Final answer
    x = 12,275.78

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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.