Home / 19,861.28-27,408.42-10,786.82

Finding the Fourth Proportional to 19,861.28, 27,408.42 and 10,786.82

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Solution

The fourth proportional to 19,861.28, 27,408.42 and 10,786.82 is: 14,885.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.28 : 27,408.42 = 10,786.82 : x
  2. Step 2: Convert to fraction form
    19,861.28/27,408.42 = 10,786.82/x
  3. Step 3: Cross multiply
    19,861.28x = 27,408.42 × 10,786.82
  4. Step 4: Simplify right side
    19,861.28x = 295,649,693.02
  5. Step 5: Solve for x
    x = 295,649,693.02/19,861.28
  6. Step 6: Final answer
    x = 14,885.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.