Home / 12,277.71-18,418.39-4,379.60

Finding the Fourth Proportional to 12,277.71, 18,418.39 and 4,379.60

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Solution

The fourth proportional to 12,277.71, 18,418.39 and 4,379.60 is: 6,570.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.71 : 18,418.39 = 4,379.60 : x
  2. Step 2: Convert to fraction form
    12,277.71/18,418.39 = 4,379.60/x
  3. Step 3: Cross multiply
    12,277.71x = 18,418.39 × 4,379.60
  4. Step 4: Simplify right side
    12,277.71x = 80,665,215.94
  5. Step 5: Solve for x
    x = 80,665,215.94/12,277.71
  6. Step 6: Final answer
    x = 6,570.05

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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.