Home / 12,200.27-18,314.96-7,272.23

Finding the Fourth Proportional to 12,200.27, 18,314.96 and 7,272.23

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Solution

The fourth proportional to 12,200.27, 18,314.96 and 7,272.23 is: 10,917.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.27 : 18,314.96 = 7,272.23 : x
  2. Step 2: Convert to fraction form
    12,200.27/18,314.96 = 7,272.23/x
  3. Step 3: Cross multiply
    12,200.27x = 18,314.96 × 7,272.23
  4. Step 4: Simplify right side
    12,200.27x = 133,190,473.62
  5. Step 5: Solve for x
    x = 133,190,473.62/12,200.27
  6. Step 6: Final answer
    x = 10,917.01

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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.