Home / 13,311.24-19,979.14-6,742.04

Finding the Fourth Proportional to 13,311.24, 19,979.14 and 6,742.04

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Solution

The fourth proportional to 13,311.24, 19,979.14 and 6,742.04 is: 10,119.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.24 : 19,979.14 = 6,742.04 : x
  2. Step 2: Convert to fraction form
    13,311.24/19,979.14 = 6,742.04/x
  3. Step 3: Cross multiply
    13,311.24x = 19,979.14 × 6,742.04
  4. Step 4: Simplify right side
    13,311.24x = 134,700,161.05
  5. Step 5: Solve for x
    x = 134,700,161.05/13,311.24
  6. Step 6: Final answer
    x = 10,119.28

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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.