Home / 6,824.72-9,421.24-5,146.80

Finding the Fourth Proportional to 6,824.72, 9,421.24 and 5,146.80

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Solution

The fourth proportional to 6,824.72, 9,421.24 and 5,146.80 is: 7,104.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,824.72 : 9,421.24 = 5,146.80 : x
  2. Step 2: Convert to fraction form
    6,824.72/9,421.24 = 5,146.80/x
  3. Step 3: Cross multiply
    6,824.72x = 9,421.24 × 5,146.80
  4. Step 4: Simplify right side
    6,824.72x = 48,489,238.03
  5. Step 5: Solve for x
    x = 48,489,238.03/6,824.72
  6. Step 6: Final answer
    x = 7,104.94

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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.