Home / 9,090.12-13,628.82-3,538.80

Finding the Fourth Proportional to 9,090.12, 13,628.82 and 3,538.80

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Solution

The fourth proportional to 9,090.12, 13,628.82 and 3,538.80 is: 5,305.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.12 : 13,628.82 = 3,538.80 : x
  2. Step 2: Convert to fraction form
    9,090.12/13,628.82 = 3,538.80/x
  3. Step 3: Cross multiply
    9,090.12x = 13,628.82 × 3,538.80
  4. Step 4: Simplify right side
    9,090.12x = 48,229,668.22
  5. Step 5: Solve for x
    x = 48,229,668.22/9,090.12
  6. Step 6: Final answer
    x = 5,305.72

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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.