Home / 13,589.15-20,380.34-7,668.63

Finding the Fourth Proportional to 13,589.15, 20,380.34 and 7,668.63

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Solution

The fourth proportional to 13,589.15, 20,380.34 and 7,668.63 is: 11,501.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.15 : 20,380.34 = 7,668.63 : x
  2. Step 2: Convert to fraction form
    13,589.15/20,380.34 = 7,668.63/x
  3. Step 3: Cross multiply
    13,589.15x = 20,380.34 × 7,668.63
  4. Step 4: Simplify right side
    13,589.15x = 156,289,305.91
  5. Step 5: Solve for x
    x = 156,289,305.91/13,589.15
  6. Step 6: Final answer
    x = 11,501.04

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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.