Home / 18,699.50-28,049.26-7,612.22

Finding the Fourth Proportional to 18,699.50, 28,049.26 and 7,612.22

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Solution

The fourth proportional to 18,699.50, 28,049.26 and 7,612.22 is: 11,418.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,699.50 : 28,049.26 = 7,612.22 : x
  2. Step 2: Convert to fraction form
    18,699.50/28,049.26 = 7,612.22/x
  3. Step 3: Cross multiply
    18,699.50x = 28,049.26 × 7,612.22
  4. Step 4: Simplify right side
    18,699.50x = 213,517,137.96
  5. Step 5: Solve for x
    x = 213,517,137.96/18,699.50
  6. Step 6: Final answer
    x = 11,418.33

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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.