Home / 13,651.06-20,450.32-8,370.65

Finding the Fourth Proportional to 13,651.06, 20,450.32 and 8,370.65

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Solution

The fourth proportional to 13,651.06, 20,450.32 and 8,370.65 is: 12,539.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651.06 : 20,450.32 = 8,370.65 : x
  2. Step 2: Convert to fraction form
    13,651.06/20,450.32 = 8,370.65/x
  3. Step 3: Cross multiply
    13,651.06x = 20,450.32 × 8,370.65
  4. Step 4: Simplify right side
    13,651.06x = 171,182,577.15
  5. Step 5: Solve for x
    x = 171,182,577.15/13,651.06
  6. Step 6: Final answer
    x = 12,539.88

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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.