Home / 8,128.96-11,217.98-4,402.96

Finding the Fourth Proportional to 8,128.96, 11,217.98 and 4,402.96

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Solution

The fourth proportional to 8,128.96, 11,217.98 and 4,402.96 is: 6,076.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.96 : 11,217.98 = 4,402.96 : x
  2. Step 2: Convert to fraction form
    8,128.96/11,217.98 = 4,402.96/x
  3. Step 3: Cross multiply
    8,128.96x = 11,217.98 × 4,402.96
  4. Step 4: Simplify right side
    8,128.96x = 49,392,317.22
  5. Step 5: Solve for x
    x = 49,392,317.22/8,128.96
  6. Step 6: Final answer
    x = 6,076.09

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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.