Home / 7,613.43-11,421.90-3,231.06

Finding the Fourth Proportional to 7,613.43, 11,421.90 and 3,231.06

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Solution

The fourth proportional to 7,613.43, 11,421.90 and 3,231.06 is: 4,847.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.43 : 11,421.90 = 3,231.06 : x
  2. Step 2: Convert to fraction form
    7,613.43/11,421.90 = 3,231.06/x
  3. Step 3: Cross multiply
    7,613.43x = 11,421.90 × 3,231.06
  4. Step 4: Simplify right side
    7,613.43x = 36,904,844.21
  5. Step 5: Solve for x
    x = 36,904,844.21/7,613.43
  6. Step 6: Final answer
    x = 4,847.33

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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.