Home / 13,719.87-20,582.88-4,359.84

Finding the Fourth Proportional to 13,719.87, 20,582.88 and 4,359.84

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Solution

The fourth proportional to 13,719.87, 20,582.88 and 4,359.84 is: 6,540.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.87 : 20,582.88 = 4,359.84 : x
  2. Step 2: Convert to fraction form
    13,719.87/20,582.88 = 4,359.84/x
  3. Step 3: Cross multiply
    13,719.87x = 20,582.88 × 4,359.84
  4. Step 4: Simplify right side
    13,719.87x = 89,738,063.54
  5. Step 5: Solve for x
    x = 89,738,063.54/13,719.87
  6. Step 6: Final answer
    x = 6,540.74

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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.