Home / 12,145.14-18,179.24-7,975.26

Finding the Fourth Proportional to 12,145.14, 18,179.24 and 7,975.26

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Solution

The fourth proportional to 12,145.14, 18,179.24 and 7,975.26 is: 11,937.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.14 : 18,179.24 = 7,975.26 : x
  2. Step 2: Convert to fraction form
    12,145.14/18,179.24 = 7,975.26/x
  3. Step 3: Cross multiply
    12,145.14x = 18,179.24 × 7,975.26
  4. Step 4: Simplify right side
    12,145.14x = 144,984,125.73
  5. Step 5: Solve for x
    x = 144,984,125.73/12,145.14
  6. Step 6: Final answer
    x = 11,937.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.