Home / 13,719.34-20,579.07-3,331.09

Finding the Fourth Proportional to 13,719.34, 20,579.07 and 3,331.09

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Solution

The fourth proportional to 13,719.34, 20,579.07 and 3,331.09 is: 4,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.34 : 20,579.07 = 3,331.09 : x
  2. Step 2: Convert to fraction form
    13,719.34/20,579.07 = 3,331.09/x
  3. Step 3: Cross multiply
    13,719.34x = 20,579.07 × 3,331.09
  4. Step 4: Simplify right side
    13,719.34x = 68,550,734.29
  5. Step 5: Solve for x
    x = 68,550,734.29/13,719.34
  6. Step 6: Final answer
    x = 4,996.65

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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.