Home / 18,489.65-25,534.35-11,778.30

Finding the Fourth Proportional to 18,489.65, 25,534.35 and 11,778.30

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Solution

The fourth proportional to 18,489.65, 25,534.35 and 11,778.30 is: 16,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489.65 : 25,534.35 = 11,778.30 : x
  2. Step 2: Convert to fraction form
    18,489.65/25,534.35 = 11,778.30/x
  3. Step 3: Cross multiply
    18,489.65x = 25,534.35 × 11,778.30
  4. Step 4: Simplify right side
    18,489.65x = 300,751,234.61
  5. Step 5: Solve for x
    x = 300,751,234.61/18,489.65
  6. Step 6: Final answer
    x = 16,265.93

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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.