Home / 18,940.50-28,418.04-7,254.63

Finding the Fourth Proportional to 18,940.50, 28,418.04 and 7,254.63

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Solution

The fourth proportional to 18,940.50, 28,418.04 and 7,254.63 is: 10,884.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940.50 : 28,418.04 = 7,254.63 : x
  2. Step 2: Convert to fraction form
    18,940.50/28,418.04 = 7,254.63/x
  3. Step 3: Cross multiply
    18,940.50x = 28,418.04 × 7,254.63
  4. Step 4: Simplify right side
    18,940.50x = 206,162,365.53
  5. Step 5: Solve for x
    x = 206,162,365.53/18,940.50
  6. Step 6: Final answer
    x = 10,884.74

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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.