Home / 13,229.64-18,255.92-7,260.36

Finding the Fourth Proportional to 13,229.64, 18,255.92 and 7,260.36

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Solution

The fourth proportional to 13,229.64, 18,255.92 and 7,260.36 is: 10,018.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.64 : 18,255.92 = 7,260.36 : x
  2. Step 2: Convert to fraction form
    13,229.64/18,255.92 = 7,260.36/x
  3. Step 3: Cross multiply
    13,229.64x = 18,255.92 × 7,260.36
  4. Step 4: Simplify right side
    13,229.64x = 132,544,551.33
  5. Step 5: Solve for x
    x = 132,544,551.33/13,229.64
  6. Step 6: Final answer
    x = 10,018.76

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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.