Home / 14,122.60-21,180.66-4,261.84

Finding the Fourth Proportional to 14,122.60, 21,180.66 and 4,261.84

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Solution

The fourth proportional to 14,122.60, 21,180.66 and 4,261.84 is: 6,391.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.60 : 21,180.66 = 4,261.84 : x
  2. Step 2: Convert to fraction form
    14,122.60/21,180.66 = 4,261.84/x
  3. Step 3: Cross multiply
    14,122.60x = 21,180.66 × 4,261.84
  4. Step 4: Simplify right side
    14,122.60x = 90,268,584.01
  5. Step 5: Solve for x
    x = 90,268,584.01/14,122.60
  6. Step 6: Final answer
    x = 6,391.78

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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.