Home / 12,249.38-18,374.04-4,458.80

Finding the Fourth Proportional to 12,249.38, 18,374.04 and 4,458.80

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Solution

The fourth proportional to 12,249.38, 18,374.04 and 4,458.80 is: 6,688.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.38 : 18,374.04 = 4,458.80 : x
  2. Step 2: Convert to fraction form
    12,249.38/18,374.04 = 4,458.80/x
  3. Step 3: Cross multiply
    12,249.38x = 18,374.04 × 4,458.80
  4. Step 4: Simplify right side
    12,249.38x = 81,926,169.55
  5. Step 5: Solve for x
    x = 81,926,169.55/12,249.38
  6. Step 6: Final answer
    x = 6,688.19

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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.