Home / 13,719.33-20,579.57-6,690.97

Finding the Fourth Proportional to 13,719.33, 20,579.57 and 6,690.97

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Solution

The fourth proportional to 13,719.33, 20,579.57 and 6,690.97 is: 10,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.33 : 20,579.57 = 6,690.97 : x
  2. Step 2: Convert to fraction form
    13,719.33/20,579.57 = 6,690.97/x
  3. Step 3: Cross multiply
    13,719.33x = 20,579.57 × 6,690.97
  4. Step 4: Simplify right side
    13,719.33x = 137,697,149.13
  5. Step 5: Solve for x
    x = 137,697,149.13/13,719.33
  6. Step 6: Final answer
    x = 10,036.73

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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.