Home / 12,079.77-18,115.23-4,180.25

Finding the Fourth Proportional to 12,079.77, 18,115.23 and 4,180.25

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Solution

The fourth proportional to 12,079.77, 18,115.23 and 4,180.25 is: 6,268.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.77 : 18,115.23 = 4,180.25 : x
  2. Step 2: Convert to fraction form
    12,079.77/18,115.23 = 4,180.25/x
  3. Step 3: Cross multiply
    12,079.77x = 18,115.23 × 4,180.25
  4. Step 4: Simplify right side
    12,079.77x = 75,726,190.21
  5. Step 5: Solve for x
    x = 75,726,190.21/12,079.77
  6. Step 6: Final answer
    x = 6,268.84

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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.