Home / 13,279.02-18,324.37-7,309.54

Finding the Fourth Proportional to 13,279.02, 18,324.37 and 7,309.54

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Solution

The fourth proportional to 13,279.02, 18,324.37 and 7,309.54 is: 10,086.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.02 : 18,324.37 = 7,309.54 : x
  2. Step 2: Convert to fraction form
    13,279.02/18,324.37 = 7,309.54/x
  3. Step 3: Cross multiply
    13,279.02x = 18,324.37 × 7,309.54
  4. Step 4: Simplify right side
    13,279.02x = 133,942,651.41
  5. Step 5: Solve for x
    x = 133,942,651.41/13,279.02
  6. Step 6: Final answer
    x = 10,086.79

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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.