Home / 10,665.60-15,997.44-3,739.68

Finding the Fourth Proportional to 10,665.60, 15,997.44 and 3,739.68

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Solution

The fourth proportional to 10,665.60, 15,997.44 and 3,739.68 is: 5,609.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.60 : 15,997.44 = 3,739.68 : x
  2. Step 2: Convert to fraction form
    10,665.60/15,997.44 = 3,739.68/x
  3. Step 3: Cross multiply
    10,665.60x = 15,997.44 × 3,739.68
  4. Step 4: Simplify right side
    10,665.60x = 59,825,306.42
  5. Step 5: Solve for x
    x = 59,825,306.42/10,665.60
  6. Step 6: Final answer
    x = 5,609.18

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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.