Home / 8,128.26-11,217.06-4,590.72

Finding the Fourth Proportional to 8,128.26, 11,217.06 and 4,590.72

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Solution

The fourth proportional to 8,128.26, 11,217.06 and 4,590.72 is: 6,335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.26 : 11,217.06 = 4,590.72 : x
  2. Step 2: Convert to fraction form
    8,128.26/11,217.06 = 4,590.72/x
  3. Step 3: Cross multiply
    8,128.26x = 11,217.06 × 4,590.72
  4. Step 4: Simplify right side
    8,128.26x = 51,494,381.68
  5. Step 5: Solve for x
    x = 51,494,381.68/8,128.26
  6. Step 6: Final answer
    x = 6,335.23

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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.