Home / 9,619.35-13,245.10-8,199.86

Finding the Fourth Proportional to 9,619.35, 13,245.10 and 8,199.86

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Solution

The fourth proportional to 9,619.35, 13,245.10 and 8,199.86 is: 11,290.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,619.35 : 13,245.10 = 8,199.86 : x
  2. Step 2: Convert to fraction form
    9,619.35/13,245.10 = 8,199.86/x
  3. Step 3: Cross multiply
    9,619.35x = 13,245.10 × 8,199.86
  4. Step 4: Simplify right side
    9,619.35x = 108,607,858.46
  5. Step 5: Solve for x
    x = 108,607,858.46/9,619.35
  6. Step 6: Final answer
    x = 11,290.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.