Home / 13,723.82-18,927.60-8,414.90

Finding the Fourth Proportional to 13,723.82, 18,927.60 and 8,414.90

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Solution

The fourth proportional to 13,723.82, 18,927.60 and 8,414.90 is: 11,605.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.82 : 18,927.60 = 8,414.90 : x
  2. Step 2: Convert to fraction form
    13,723.82/18,927.60 = 8,414.90/x
  3. Step 3: Cross multiply
    13,723.82x = 18,927.60 × 8,414.90
  4. Step 4: Simplify right side
    13,723.82x = 159,273,861.24
  5. Step 5: Solve for x
    x = 159,273,861.24/13,723.82
  6. Step 6: Final answer
    x = 11,605.65

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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.