Home / 19,859.76-29,791.26-9,993.96

Finding the Fourth Proportional to 19,859.76, 29,791.26 and 9,993.96

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Solution

The fourth proportional to 19,859.76, 29,791.26 and 9,993.96 is: 14,991.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859.76 : 29,791.26 = 9,993.96 : x
  2. Step 2: Convert to fraction form
    19,859.76/29,791.26 = 9,993.96/x
  3. Step 3: Cross multiply
    19,859.76x = 29,791.26 × 9,993.96
  4. Step 4: Simplify right side
    19,859.76x = 297,732,660.79
  5. Step 5: Solve for x
    x = 297,732,660.79/19,859.76
  6. Step 6: Final answer
    x = 14,991.76

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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.