Home / 8,739.56-13,109.34-4,125.80

Finding the Fourth Proportional to 8,739.56, 13,109.34 and 4,125.80

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Solution

The fourth proportional to 8,739.56, 13,109.34 and 4,125.80 is: 6,188.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.56 : 13,109.34 = 4,125.80 : x
  2. Step 2: Convert to fraction form
    8,739.56/13,109.34 = 4,125.80/x
  3. Step 3: Cross multiply
    8,739.56x = 13,109.34 × 4,125.80
  4. Step 4: Simplify right side
    8,739.56x = 54,086,514.97
  5. Step 5: Solve for x
    x = 54,086,514.97/8,739.56
  6. Step 6: Final answer
    x = 6,188.70

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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.