Home / 12,205.53-18,287.40-6,662.77

Finding the Fourth Proportional to 12,205.53, 18,287.40 and 6,662.77

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Solution

The fourth proportional to 12,205.53, 18,287.40 and 6,662.77 is: 9,982.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,205.53 : 18,287.40 = 6,662.77 : x
  2. Step 2: Convert to fraction form
    12,205.53/18,287.40 = 6,662.77/x
  3. Step 3: Cross multiply
    12,205.53x = 18,287.40 × 6,662.77
  4. Step 4: Simplify right side
    12,205.53x = 121,844,694.38
  5. Step 5: Solve for x
    x = 121,844,694.38/12,205.53
  6. Step 6: Final answer
    x = 9,982.75

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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.