Home / 12,292.26-18,415.26-7,279.80

Finding the Fourth Proportional to 12,292.26, 18,415.26 and 7,279.80

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Solution

The fourth proportional to 12,292.26, 18,415.26 and 7,279.80 is: 10,906.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,292.26 : 18,415.26 = 7,279.80 : x
  2. Step 2: Convert to fraction form
    12,292.26/18,415.26 = 7,279.80/x
  3. Step 3: Cross multiply
    12,292.26x = 18,415.26 × 7,279.80
  4. Step 4: Simplify right side
    12,292.26x = 134,059,409.75
  5. Step 5: Solve for x
    x = 134,059,409.75/12,292.26
  6. Step 6: Final answer
    x = 10,906.00

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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.