Home / 13,745.06-18,983.66-9,287.22

Finding the Fourth Proportional to 13,745.06, 18,983.66 and 9,287.22

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Solution

The fourth proportional to 13,745.06, 18,983.66 and 9,287.22 is: 12,826.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.06 : 18,983.66 = 9,287.22 : x
  2. Step 2: Convert to fraction form
    13,745.06/18,983.66 = 9,287.22/x
  3. Step 3: Cross multiply
    13,745.06x = 18,983.66 × 9,287.22
  4. Step 4: Simplify right side
    13,745.06x = 176,305,380.39
  5. Step 5: Solve for x
    x = 176,305,380.39/13,745.06
  6. Step 6: Final answer
    x = 12,826.82

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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.