Home / 8,279.75-11,425.70-4,743.29

Finding the Fourth Proportional to 8,279.75, 11,425.70 and 4,743.29

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Solution

The fourth proportional to 8,279.75, 11,425.70 and 4,743.29 is: 6,545.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.75 : 11,425.70 = 4,743.29 : x
  2. Step 2: Convert to fraction form
    8,279.75/11,425.70 = 4,743.29/x
  3. Step 3: Cross multiply
    8,279.75x = 11,425.70 × 4,743.29
  4. Step 4: Simplify right side
    8,279.75x = 54,195,363.28
  5. Step 5: Solve for x
    x = 54,195,363.28/8,279.75
  6. Step 6: Final answer
    x = 6,545.54

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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.