Home / 13,148.68-18,144.92-8,110.88

Finding the Fourth Proportional to 13,148.68, 18,144.92 and 8,110.88

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Solution

The fourth proportional to 13,148.68, 18,144.92 and 8,110.88 is: 11,192.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.68 : 18,144.92 = 8,110.88 : x
  2. Step 2: Convert to fraction form
    13,148.68/18,144.92 = 8,110.88/x
  3. Step 3: Cross multiply
    13,148.68x = 18,144.92 × 8,110.88
  4. Step 4: Simplify right side
    13,148.68x = 147,171,268.73
  5. Step 5: Solve for x
    x = 147,171,268.73/13,148.68
  6. Step 6: Final answer
    x = 11,192.86

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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.