Home / 18,209.36-27,314.58-7,115.60

Finding the Fourth Proportional to 18,209.36, 27,314.58 and 7,115.60

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Solution

The fourth proportional to 18,209.36, 27,314.58 and 7,115.60 is: 10,673.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209.36 : 27,314.58 = 7,115.60 : x
  2. Step 2: Convert to fraction form
    18,209.36/27,314.58 = 7,115.60/x
  3. Step 3: Cross multiply
    18,209.36x = 27,314.58 × 7,115.60
  4. Step 4: Simplify right side
    18,209.36x = 194,359,625.45
  5. Step 5: Solve for x
    x = 194,359,625.45/18,209.36
  6. Step 6: Final answer
    x = 10,673.61

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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.