Home / 12,629.18-18,952.25-7,952.42

Finding the Fourth Proportional to 12,629.18, 18,952.25 and 7,952.42

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Solution

The fourth proportional to 12,629.18, 18,952.25 and 7,952.42 is: 11,933.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.18 : 18,952.25 = 7,952.42 : x
  2. Step 2: Convert to fraction form
    12,629.18/18,952.25 = 7,952.42/x
  3. Step 3: Cross multiply
    12,629.18x = 18,952.25 × 7,952.42
  4. Step 4: Simplify right side
    12,629.18x = 150,716,259.56
  5. Step 5: Solve for x
    x = 150,716,259.56/12,629.18
  6. Step 6: Final answer
    x = 11,933.97

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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.