Home / 13,633.70-20,450.55-10,328.90

Finding the Fourth Proportional to 13,633.70, 20,450.55 and 10,328.90

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Solution

The fourth proportional to 13,633.70, 20,450.55 and 10,328.90 is: 15,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,633.70 : 20,450.55 = 10,328.90 : x
  2. Step 2: Convert to fraction form
    13,633.70/20,450.55 = 10,328.90/x
  3. Step 3: Cross multiply
    13,633.70x = 20,450.55 × 10,328.90
  4. Step 4: Simplify right side
    13,633.70x = 211,231,685.90
  5. Step 5: Solve for x
    x = 211,231,685.90/13,633.70
  6. Step 6: Final answer
    x = 15,493.35

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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.