Home / 13,823.82-20,719.50-6,412.68

Finding the Fourth Proportional to 13,823.82, 20,719.50 and 6,412.68

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Solution

The fourth proportional to 13,823.82, 20,719.50 and 6,412.68 is: 9,611.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,823.82 : 20,719.50 = 6,412.68 : x
  2. Step 2: Convert to fraction form
    13,823.82/20,719.50 = 6,412.68/x
  3. Step 3: Cross multiply
    13,823.82x = 20,719.50 × 6,412.68
  4. Step 4: Simplify right side
    13,823.82x = 132,867,523.26
  5. Step 5: Solve for x
    x = 132,867,523.26/13,823.82
  6. Step 6: Final answer
    x = 9,611.49

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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.