Home / 13,910.74-20,859.89-9,998.73

Finding the Fourth Proportional to 13,910.74, 20,859.89 and 9,998.73

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Solution

The fourth proportional to 13,910.74, 20,859.89 and 9,998.73 is: 14,993.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,910.74 : 20,859.89 = 9,998.73 : x
  2. Step 2: Convert to fraction form
    13,910.74/20,859.89 = 9,998.73/x
  3. Step 3: Cross multiply
    13,910.74x = 20,859.89 × 9,998.73
  4. Step 4: Simplify right side
    13,910.74x = 208,572,357.95
  5. Step 5: Solve for x
    x = 208,572,357.95/13,910.74
  6. Step 6: Final answer
    x = 14,993.62

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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.