Home / 12,380.34-18,527.43-11,660.66

Finding the Fourth Proportional to 12,380.34, 18,527.43 and 11,660.66

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Solution

The fourth proportional to 12,380.34, 18,527.43 and 11,660.66 is: 17,450.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.34 : 18,527.43 = 11,660.66 : x
  2. Step 2: Convert to fraction form
    12,380.34/18,527.43 = 11,660.66/x
  3. Step 3: Cross multiply
    12,380.34x = 18,527.43 × 11,660.66
  4. Step 4: Simplify right side
    12,380.34x = 216,042,082.47
  5. Step 5: Solve for x
    x = 216,042,082.47/12,380.34
  6. Step 6: Final answer
    x = 17,450.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.