Home / 13,651.48-20,450.07-10,520.59

Finding the Fourth Proportional to 13,651.48, 20,450.07 and 10,520.59

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Solution

The fourth proportional to 13,651.48, 20,450.07 and 10,520.59 is: 15,759.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651.48 : 20,450.07 = 10,520.59 : x
  2. Step 2: Convert to fraction form
    13,651.48/20,450.07 = 10,520.59/x
  3. Step 3: Cross multiply
    13,651.48x = 20,450.07 × 10,520.59
  4. Step 4: Simplify right side
    13,651.48x = 215,146,801.94
  5. Step 5: Solve for x
    x = 215,146,801.94/13,651.48
  6. Step 6: Final answer
    x = 15,759.96

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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.