Home / 19,659.78-29,481.84-7,176.96

Finding the Fourth Proportional to 19,659.78, 29,481.84 and 7,176.96

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Solution

The fourth proportional to 19,659.78, 29,481.84 and 7,176.96 is: 10,762.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.78 : 29,481.84 = 7,176.96 : x
  2. Step 2: Convert to fraction form
    19,659.78/29,481.84 = 7,176.96/x
  3. Step 3: Cross multiply
    19,659.78x = 29,481.84 × 7,176.96
  4. Step 4: Simplify right side
    19,659.78x = 211,589,986.41
  5. Step 5: Solve for x
    x = 211,589,986.41/19,659.78
  6. Step 6: Final answer
    x = 10,762.58

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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.