Home / 13,548.06-18,698.04-8,242.56

Finding the Fourth Proportional to 13,548.06, 18,698.04 and 8,242.56

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Solution

The fourth proportional to 13,548.06, 18,698.04 and 8,242.56 is: 11,375.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.06 : 18,698.04 = 8,242.56 : x
  2. Step 2: Convert to fraction form
    13,548.06/18,698.04 = 8,242.56/x
  3. Step 3: Cross multiply
    13,548.06x = 18,698.04 × 8,242.56
  4. Step 4: Simplify right side
    13,548.06x = 154,119,716.58
  5. Step 5: Solve for x
    x = 154,119,716.58/13,548.06
  6. Step 6: Final answer
    x = 11,375.78

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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.