Home / 12,282.60-18,419.40-3,964.80

Finding the Fourth Proportional to 12,282.60, 18,419.40 and 3,964.80

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Solution

The fourth proportional to 12,282.60, 18,419.40 and 3,964.80 is: 5,945.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.60 : 18,419.40 = 3,964.80 : x
  2. Step 2: Convert to fraction form
    12,282.60/18,419.40 = 3,964.80/x
  3. Step 3: Cross multiply
    12,282.60x = 18,419.40 × 3,964.80
  4. Step 4: Simplify right side
    12,282.60x = 73,029,237.12
  5. Step 5: Solve for x
    x = 73,029,237.12/12,282.60
  6. Step 6: Final answer
    x = 5,945.75

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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.