Home / 13,228.06-18,249.73-8,448.18

Finding the Fourth Proportional to 13,228.06, 18,249.73 and 8,448.18

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Solution

The fourth proportional to 13,228.06, 18,249.73 and 8,448.18 is: 11,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228.06 : 18,249.73 = 8,448.18 : x
  2. Step 2: Convert to fraction form
    13,228.06/18,249.73 = 8,448.18/x
  3. Step 3: Cross multiply
    13,228.06x = 18,249.73 × 8,448.18
  4. Step 4: Simplify right side
    13,228.06x = 154,177,003.99
  5. Step 5: Solve for x
    x = 154,177,003.99/13,228.06
  6. Step 6: Final answer
    x = 11,655.30

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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.