Home / 13,861.92-19,132.85-11,620.25

Finding the Fourth Proportional to 13,861.92, 19,132.85 and 11,620.25

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Solution

The fourth proportional to 13,861.92, 19,132.85 and 11,620.25 is: 16,038.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.92 : 19,132.85 = 11,620.25 : x
  2. Step 2: Convert to fraction form
    13,861.92/19,132.85 = 11,620.25/x
  3. Step 3: Cross multiply
    13,861.92x = 19,132.85 × 11,620.25
  4. Step 4: Simplify right side
    13,861.92x = 222,328,433.60
  5. Step 5: Solve for x
    x = 222,328,433.60/13,861.92
  6. Step 6: Final answer
    x = 16,038.79

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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.