Home / 13,719.96-20,581.20-6,326.46

Finding the Fourth Proportional to 13,719.96, 20,581.20 and 6,326.46

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Solution

The fourth proportional to 13,719.96, 20,581.20 and 6,326.46 is: 9,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.96 : 20,581.20 = 6,326.46 : x
  2. Step 2: Convert to fraction form
    13,719.96/20,581.20 = 6,326.46/x
  3. Step 3: Cross multiply
    13,719.96x = 20,581.20 × 6,326.46
  4. Step 4: Simplify right side
    13,719.96x = 130,206,138.55
  5. Step 5: Solve for x
    x = 130,206,138.55/13,719.96
  6. Step 6: Final answer
    x = 9,490.27

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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.