Home / 13,247.75-18,282.22-7,279.80

Finding the Fourth Proportional to 13,247.75, 18,282.22 and 7,279.80

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Solution

The fourth proportional to 13,247.75, 18,282.22 and 7,279.80 is: 10,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.75 : 18,282.22 = 7,279.80 : x
  2. Step 2: Convert to fraction form
    13,247.75/18,282.22 = 7,279.80/x
  3. Step 3: Cross multiply
    13,247.75x = 18,282.22 × 7,279.80
  4. Step 4: Simplify right side
    13,247.75x = 133,090,905.16
  5. Step 5: Solve for x
    x = 133,090,905.16/13,247.75
  6. Step 6: Final answer
    x = 10,046.30

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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.