Home / 19,553.78-29,334.92-6,405.66

Finding the Fourth Proportional to 19,553.78, 29,334.92 and 6,405.66

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Solution

The fourth proportional to 19,553.78, 29,334.92 and 6,405.66 is: 9,609.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,553.78 : 29,334.92 = 6,405.66 : x
  2. Step 2: Convert to fraction form
    19,553.78/29,334.92 = 6,405.66/x
  3. Step 3: Cross multiply
    19,553.78x = 29,334.92 × 6,405.66
  4. Step 4: Simplify right side
    19,553.78x = 187,909,523.65
  5. Step 5: Solve for x
    x = 187,909,523.65/19,553.78
  6. Step 6: Final answer
    x = 9,609.88

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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.