Home / 12,449.28-18,674.25-4,129.89

Finding the Fourth Proportional to 12,449.28, 18,674.25 and 4,129.89

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Solution

The fourth proportional to 12,449.28, 18,674.25 and 4,129.89 is: 6,194.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,449.28 : 18,674.25 = 4,129.89 : x
  2. Step 2: Convert to fraction form
    12,449.28/18,674.25 = 4,129.89/x
  3. Step 3: Cross multiply
    12,449.28x = 18,674.25 × 4,129.89
  4. Step 4: Simplify right side
    12,449.28x = 77,122,598.33
  5. Step 5: Solve for x
    x = 77,122,598.33/12,449.28
  6. Step 6: Final answer
    x = 6,194.94

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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.