Home / 13,861.60-19,131.33-7,892.44

Finding the Fourth Proportional to 13,861.60, 19,131.33 and 7,892.44

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Solution

The fourth proportional to 13,861.60, 19,131.33 and 7,892.44 is: 10,892.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.60 : 19,131.33 = 7,892.44 : x
  2. Step 2: Convert to fraction form
    13,861.60/19,131.33 = 7,892.44/x
  3. Step 3: Cross multiply
    13,861.60x = 19,131.33 × 7,892.44
  4. Step 4: Simplify right side
    13,861.60x = 150,992,874.15
  5. Step 5: Solve for x
    x = 150,992,874.15/13,861.60
  6. Step 6: Final answer
    x = 10,892.89

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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.