Home / 7,623.14-11,415.12-5,279.80

Finding the Fourth Proportional to 7,623.14, 11,415.12 and 5,279.80

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Solution

The fourth proportional to 7,623.14, 11,415.12 and 5,279.80 is: 7,906.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,623.14 : 11,415.12 = 5,279.80 : x
  2. Step 2: Convert to fraction form
    7,623.14/11,415.12 = 5,279.80/x
  3. Step 3: Cross multiply
    7,623.14x = 11,415.12 × 5,279.80
  4. Step 4: Simplify right side
    7,623.14x = 60,269,550.58
  5. Step 5: Solve for x
    x = 60,269,550.58/7,623.14
  6. Step 6: Final answer
    x = 7,906.13

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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.