Home / 13,380.93-18,474.93-11,960.30

Finding the Fourth Proportional to 13,380.93, 18,474.93 and 11,960.30

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Solution

The fourth proportional to 13,380.93, 18,474.93 and 11,960.30 is: 16,513.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.93 : 18,474.93 = 11,960.30 : x
  2. Step 2: Convert to fraction form
    13,380.93/18,474.93 = 11,960.30/x
  3. Step 3: Cross multiply
    13,380.93x = 18,474.93 × 11,960.30
  4. Step 4: Simplify right side
    13,380.93x = 220,965,612.90
  5. Step 5: Solve for x
    x = 220,965,612.90/13,380.93
  6. Step 6: Final answer
    x = 16,513.47

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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.