Home / 18,108.59-27,157.61-7,012.80

Finding the Fourth Proportional to 18,108.59, 27,157.61 and 7,012.80

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Solution

The fourth proportional to 18,108.59, 27,157.61 and 7,012.80 is: 10,517.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.59 : 27,157.61 = 7,012.80 : x
  2. Step 2: Convert to fraction form
    18,108.59/27,157.61 = 7,012.80/x
  3. Step 3: Cross multiply
    18,108.59x = 27,157.61 × 7,012.80
  4. Step 4: Simplify right side
    18,108.59x = 190,450,904.94
  5. Step 5: Solve for x
    x = 190,450,904.94/18,108.59
  6. Step 6: Final answer
    x = 10,517.16

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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.